[Compound] Integrate compound tokens (#586)

* Added tokens.

* Apply color to MaterialTheme, also add typography.

* Map colors to the right ones in the themes.

* Create and improve previews of some components

* More preview improvements

* Add `tertiary` and `onTertiary` colors, remove some unused ones.

* Fix usage of deleted color token

* Fix bug in Switch previews

* Create a separate `:libraries:theme` module to keep everything related to colors, typography and Compound in general.

* Fix `DatePickerPreview`

* Add missing Compound generated files by fixing their package name

* Move `ElementTheme` to the `:libraries:theme` module, make some variables internal.

---------

Co-authored-by: ElementBot <benoitm+elementbot@element.io>

features/networkmonitor/api/src/main/kotlin/io/element/android/features/networkmonitor/api/ui/ConnectivityIndicatorView.kt

@@ -48,7 +48,6 @@ import androidx.compose.ui.unit.dp
 import io.element.android.libraries.designsystem.ElementTextStyles
 import io.element.android.libraries.designsystem.preview.ElementPreviewDark
 import io.element.android.libraries.designsystem.preview.ElementPreviewLight
-import io.element.android.libraries.designsystem.theme.LocalColors
 import io.element.android.libraries.ui.strings.CommonStrings
 
 @Composable
@@ -83,7 +82,7 @@ private fun Indicator(modifier: Modifier = Modifier) {
     Row(
         modifier
             .fillMaxWidth()
-            .background(LocalColors.current.gray400)
+            .background(MaterialTheme.colorScheme.secondaryContainer)
             .statusBarsPadding()
             .padding(vertical = 6.dp),
         horizontalArrangement = Arrangement.Center,