[Message actions] New UI for replies (#545)

* Add 'reply to' UI to the message composer.

* Move the `BlurHashAsyncImage` to `:libraries:designsystem` as it is now used in several modules.

*  Create reusable `AttachmentThumbnail` and associated data classes and enums, it's now added to `:libraries:matrixui`.

* Re-use `AttachmentThumbnail` in a `ActionListView` and `TextComposer`.

* Add 'inReplyTo' models and UI.

* Add min size for images

* Create a separate layout for media items with no reply to info. Also, separate `Timeline__Row` components from `TimelineView`, as it was getting too large.

* Added `EqualWidthColumn` to use inside message bubbles. Also fixed some modifiers for media items replying to other messages.

* Disable `inReplyToClicked`.

* Remove unused resources and libraries.

* Remove any traces of `BlurHashAsyncImage` in `:features:messages`, since it was moved to the design system.

---------

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

libraries/matrixui/src/main/kotlin/io/element/android/libraries/matrix/ui/components/AttachmentThumbnail.kt

@@ -0,0 +1,93 @@
+/*
+ * 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.matrix.ui.components
+
+import android.os.Parcelable
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Box
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.Attachment
+import androidx.compose.material.icons.outlined.VideoCameraBack
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.rotate
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.layout.ContentScale
+import io.element.android.libraries.designsystem.components.BlurHashAsyncImage
+import io.element.android.libraries.designsystem.theme.components.Icon
+import io.element.android.libraries.matrix.api.media.MediaSource
+import io.element.android.libraries.matrix.ui.media.MediaRequestData
+import kotlinx.parcelize.Parcelize
+
+@Composable
+fun AttachmentThumbnail(
+    info: AttachmentThumbnailInfo,
+    modifier: Modifier = Modifier,
+    thumbnailSize: Long = 32L,
+    backgroundColor: Color = MaterialTheme.colorScheme.surface,
+) {
+    if (info.mediaSource != null) {
+        val mediaRequestData = MediaRequestData(
+            source = info.mediaSource,
+            kind = MediaRequestData.Kind.Thumbnail(thumbnailSize),
+        )
+        BlurHashAsyncImage(
+            model = mediaRequestData,
+            blurHash = info.blurHash,
+            contentDescription = info.textContent,
+            contentScale = ContentScale.Crop,
+            modifier = modifier,
+        )
+    } else {
+        Box(
+            modifier = modifier.background(backgroundColor),
+            contentAlignment = Alignment.Center
+        ) {
+            when (info.type) {
+                AttachmentThumbnailType.Video -> {
+                    Icon(
+                        imageVector = Icons.Outlined.VideoCameraBack,
+                        contentDescription = info.textContent,
+                    )
+                }
+                AttachmentThumbnailType.File -> {
+                    Icon(
+                        imageVector = Icons.Outlined.Attachment,
+                        contentDescription = info.textContent,
+                        modifier = Modifier.rotate(-45f)
+                    )
+                }
+                else -> Unit
+            }
+        }
+    }
+}
+
+@Parcelize
+enum class AttachmentThumbnailType: Parcelable {
+    Image, Video, File
+}
+
+@Parcelize
+data class AttachmentThumbnailInfo(
+    val mediaSource: MediaSource?,
+    val textContent: String?,
+    val type: AttachmentThumbnailType?,
+    val blurHash: String?,
+): Parcelable