Auto generate dark mode previews and screenshots (#776)

With this change, composable previews and screenshots should be created with just:
```
@ElementPreviews
@Composable
fun MyViewPreview() {
    ElementPreview { 
        MyView()
    }
}
```

- Adds `@ElementPreviews` which is a shorthand for:
```
@Preview(name = "D")
@Preview(name = "N", uiMode = Configuration.UI_MODE_NIGHT_YES)
```
Should be used in connection with the now public `fun ElementPreview()` composable.

- Adds ElementPreviews to previewAnnotations in dangerfile
- Screenshots of night mode previews are now rendered with night mode
- Replaces `ElementPreviewLight` and `ElementThemedPreview` with `ElementPreview`
- Deprecates `ElementPreviewDark` which should be removed.
- Remaining usages of `ElementPreviewDark` are now ignored during screenshot tests

features/location/impl/src/main/kotlin/io/element/android/features/location/impl/SendLocationView.kt

@@ -37,7 +37,7 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.font.FontWeight
-import androidx.compose.ui.tooling.preview.Preview
+import io.element.android.libraries.designsystem.preview.ElementPreviews
 import androidx.compose.ui.tooling.preview.PreviewParameter
 import androidx.compose.ui.unit.IntOffset
 import androidx.compose.ui.unit.dp
@@ -45,8 +45,8 @@ import androidx.compose.ui.unit.sp
 import io.element.android.features.location.impl.map.MapView
 import io.element.android.features.location.impl.map.rememberMapState
 import io.element.android.libraries.designsystem.components.button.BackButton
+import io.element.android.libraries.designsystem.preview.ElementPreview
 import io.element.android.libraries.designsystem.preview.ElementPreviewDark
-import io.element.android.libraries.designsystem.preview.ElementPreviewLight
 import io.element.android.libraries.designsystem.theme.components.BottomSheetScaffold
 import io.element.android.libraries.designsystem.theme.components.CenterAlignedTopAppBar
 import io.element.android.libraries.designsystem.theme.components.Icon
@@ -130,12 +130,13 @@ fun SendLocationView(
     }
 }
 
-@Preview
+@ElementPreviews
 @Composable
-internal fun SendLocationViewLightPreview(@PreviewParameter(SendLocationStateProvider::class) state: SendLocationState) =
-    ElementPreviewLight { ContentToPreview(state) }
+internal fun SendLocationViewLightPreview(@PreviewParameter(SendLocationStateProvider::class) state: SendLocationState) {
+    ElementPreview { ContentToPreview(state) }
+}
 
-@Preview
+@ElementPreviews
 @Composable
 internal fun SendLocationViewDarkPreview(@PreviewParameter(SendLocationStateProvider::class) state: SendLocationState) =
     ElementPreviewDark { ContentToPreview(state) }

features/location/impl/src/main/kotlin/io/element/android/features/location/impl/map/MapView.kt

@@ -35,7 +35,7 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.platform.LocalInspectionMode
-import androidx.compose.ui.tooling.preview.Preview
+import io.element.android.libraries.designsystem.preview.ElementPreviews
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.viewinterop.AndroidView
 import com.mapbox.mapboxsdk.Mapbox
@@ -50,9 +50,9 @@ import com.mapbox.mapboxsdk.plugins.annotation.SymbolOptions
 import com.mapbox.mapboxsdk.style.layers.Property.ICON_ANCHOR_BOTTOM
 import io.element.android.features.location.api.Location
 import io.element.android.features.location.api.internal.buildTileServerUrl
-import io.element.android.libraries.designsystem.preview.ElementPreviewDark
-import io.element.android.libraries.designsystem.preview.ElementPreviewLight
 import io.element.android.libraries.designsystem.theme.components.Text
+import io.element.android.libraries.designsystem.preview.ElementPreview
+import io.element.android.libraries.designsystem.preview.ElementPreviewDark
 import io.element.android.libraries.theme.ElementTheme
 import kotlinx.collections.immutable.ImmutableList
 import kotlinx.collections.immutable.toImmutableList
@@ -258,12 +258,13 @@ private suspend inline fun MapView.awaitMap(): MapboxMap =
         }
     }
 
-@Preview
+@ElementPreviews
 @Composable
-fun MapViewLightPreview() =
-    ElementPreviewLight { ContentToPreview() }
+fun MapViewLightPreview() {
+    ElementPreview { ContentToPreview() }
+}
 
-@Preview
+@ElementPreviews
 @Composable
 fun MapViewDarkPreview() =
     ElementPreviewDark { ContentToPreview() }

features/location/impl/src/main/kotlin/io/element/android/features/location/impl/show/ShowLocationView.kt

@@ -30,15 +30,15 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.text.style.TextOverflow
-import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.tooling.preview.PreviewParameter
 import androidx.compose.ui.unit.dp
 import io.element.android.features.location.impl.map.MapState
 import io.element.android.features.location.impl.map.MapView
 import io.element.android.features.location.impl.map.rememberMapState
 import io.element.android.libraries.designsystem.components.button.BackButton
+import io.element.android.libraries.designsystem.preview.ElementPreview
 import io.element.android.libraries.designsystem.preview.ElementPreviewDark
-import io.element.android.libraries.designsystem.preview.ElementPreviewLight
+import io.element.android.libraries.designsystem.preview.ElementPreviews
 import io.element.android.libraries.designsystem.theme.components.CenterAlignedTopAppBar
 import io.element.android.libraries.designsystem.theme.components.Icon
 import io.element.android.libraries.designsystem.theme.components.IconButton
@@ -106,12 +106,12 @@ fun ShowLocationView(
     }
 }
 
-@Preview
+@ElementPreviews
 @Composable
 internal fun ShowLocationViewLightPreview(@PreviewParameter(ShowLocationStateProvider::class) state: ShowLocationState) =
-    ElementPreviewLight { ContentToPreview(state) }
+    ElementPreview { ContentToPreview(state) }
 
-@Preview
+@ElementPreviews
 @Composable
 internal fun ShowLocationViewDarkPreview(@PreviewParameter(ShowLocationStateProvider::class) state: ShowLocationState) =
     ElementPreviewDark { ContentToPreview(state) }