Show correct UI when replying to a voice message (#1658)

Shows voice messages in the room summary.
Shows voice messages in the reply context menu and composer.
Show replies to voice messages in the timeline. 

(before this PR voice messages were shown the same as audio messages)

Story: https://github.com/vector-im/element-meta/issues/2106

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

@@ -75,6 +75,12 @@ fun AttachmentThumbnail(
                         contentDescription = info.textContent,
                     )
                 }
+                AttachmentThumbnailType.Voice -> {
+                    Icon(
+                        resourceId = CommonDrawables.ic_voice_attachment,
+                        contentDescription = info.textContent,
+                    )
+                }
                 AttachmentThumbnailType.File -> {
                     Icon(
                         resourceId = CommonDrawables.ic_september_attachment,
@@ -95,7 +101,7 @@ fun AttachmentThumbnail(
 
 @Parcelize
 enum class AttachmentThumbnailType : Parcelable {
-    Image, Video, File, Audio, Location
+    Image, Video, File, Audio, Location, Voice
 }
 
 @Parcelize