feat(chat): add animated GIF rendering with tap-to-play animation (#721) (#731)

* feat(chat): add animated GIF rendering with tap-to-play animation

Closes #721

* fix(#721): add missing GifImageThumbnail component and format ktlint

* fix(analytics): resolve ktlint indentation error in itemsIndexed

* feat(chat): add interactive play/pause toggle for animated GIFs

* fix(chat): control GIF playback via Animatable start and stop

app/src/main/java/com/m57/hermescontrol/data/model/Attachment.kt

@@ -28,6 +28,13 @@ data class Attachment(
     val isImage: Boolean
         get() = mimeType.startsWith("image/")
 
+    val isGif: Boolean
+        get() =
+            mimeType.equals("image/gif", ignoreCase = true) ||
+                fileExtension == "gif" ||
+                uri.contains(".gif", ignoreCase = true) ||
+                uri.startsWith("data:image/gif", ignoreCase = true)
+
     val isGateway: Boolean
         get() = source == AttachmentSource.GATEWAY