Design fixes for room detail, dm & room member detail screens (#363)

* Design fixes for room detail, dm & room member detail screens.

* Record new screenshots, improve RoomDetailsStateProvider.

* Move MainActionButton to its own component in the design system.

libraries/designsystem/src/main/kotlin/io/element/android/libraries/designsystem/components/button/MainActionButton.kt

@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 2023 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.element.android.libraries.designsystem.components.button
+
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.interaction.MutableInteractionSource
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.Share
+import androidx.compose.material.ripple.rememberRipple
+import androidx.compose.material3.LocalContentColor
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.tooling.preview.Preview
+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.components.Icon
+import io.element.android.libraries.designsystem.theme.components.Text
+
+@Composable
+fun MainActionButton(
+    title: String,
+    icon: ImageVector,
+    onClick: () -> Unit,
+    modifier: Modifier = Modifier,
+    enabled: Boolean = true,
+    contentDescription: String = title,
+) {
+    val ripple = rememberRipple(bounded = false)
+    val interactionSource = MutableInteractionSource()
+    Column(
+        modifier.clickable(
+            enabled = enabled,
+            interactionSource = interactionSource,
+            onClick = onClick,
+            indication = ripple
+        ),
+        horizontalAlignment = Alignment.CenterHorizontally,
+    ) {
+        val tintColor = if (enabled) LocalContentColor.current else MaterialTheme.colorScheme.secondary
+        Icon(
+            icon,
+            contentDescription = contentDescription,
+            tint = tintColor,
+        )
+        Spacer(modifier = Modifier.height(14.dp))
+        Text(
+            title,
+            style = ElementTextStyles.Regular.bodyMD.copy(fontWeight = FontWeight.Medium),
+            color = tintColor,
+        )
+    }
+}
+
+@Preview
+@Composable
+internal fun MainActionButtonLightPreview() {
+    ElementPreviewLight {
+        ContentsToPreview()
+    }
+}
+
+@Preview
+@Composable
+internal fun MainActionButtonDarkPreview() {
+    ElementPreviewDark {
+        ContentsToPreview()
+    }
+}
+
+@Composable
+private fun ContentsToPreview() {
+    Row(Modifier.padding(10.dp)) {
+        MainActionButton(title = "Share", icon = Icons.Outlined.Share, onClick = { })
+        Spacer(modifier = Modifier.width(20.dp))
+        MainActionButton(title = "Share", icon = Icons.Outlined.Share, onClick = { }, enabled = false)
+    }
+}