fix(gallery): forward thumbhash when adding media to gallery

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/components/ZoomableContentView.kt

@@ -961,7 +961,10 @@ fun ShareMediaAction(
                                     // still — the .m3u8 URL itself is a text manifest. Only
                                     // MediaUrlVideo carries an artworkUri.
                                     val posterUrl = (content as? MediaUrlVideo)?.artworkUri
-                                    accountViewModel.addMediaToGallery(n19.hex, videoUri, n19.relay.getOrNull(0), blurhash, dim, hash, mimeType, image = posterUrl)
+                                    val thumbhashFromContent =
+                                        (content as? MediaUrlVideo)?.thumbhash
+                                            ?: (content as? MediaUrlImage)?.thumbhash
+                                    accountViewModel.addMediaToGallery(n19.hex, videoUri, n19.relay.getOrNull(0), blurhash, dim, hash, mimeType, thumbhash = thumbhashFromContent, image = posterUrl)
                                     accountViewModel.toastManager.toast(R.string.media_added, R.string.media_added_to_profile_gallery)
                                 }
                             }

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt

@@ -896,8 +896,9 @@ class AccountViewModel(
         dim: DimensionTag?,
         hash: String?,
         mimeType: String?,
+        thumbhash: String? = null,
         image: String? = null,
-    ) = launchSigner { account.addToGallery(hex, url, relay, blurhash, dim, hash, mimeType, image = image) }
+    ) = launchSigner { account.addToGallery(hex, url, relay, blurhash, dim, hash, mimeType, thumbhash = thumbhash, image = image) }
 
     fun removeFromMediaGallery(note: Note) = launchSigner { account.removeFromGallery(note) }