[MM-49540] Message Priority Phase 3 (#7142)

* Init

* i18 and types

* Acknowledge button, api

* Ack button + display ackd users

* Saves priority on draft and addresses some comments

* Addresses review comments round 2

* Moves fetching userprofiles upon opening ACKs

* Adds metadata column in drafts table

+ Addresses some more review comments.

* Small refactor according to review comments

* Addresses some review comments

* Addresses some review comments

* Uses local action when ACKing

* Fixes first time selecting priority and other

* Updates snapshots

* Fixes i18n

* Fixes ts errors

---------

Co-authored-by: Anurag Shivarathri <anurag6713@gmail.com>
Co-authored-by: Mattermost Build <build@mattermost.com>

app/database/operator/server_data_operator/transformers/post.ts

@@ -41,7 +41,12 @@ export const transformPostRecord = ({action, database, value}: TransformerArgs):
         post.updateAt = raw.update_at;
         post.isPinned = Boolean(raw.is_pinned);
         post.message = raw.message;
-        post.metadata = raw.metadata && Object.keys(raw.metadata).length ? raw.metadata : null;
+
+        // When we extract the posts from the threads, we don't get the metadata
+        // So, it might not be present in the raw post, so we use the one from the record
+        const metadata = raw.metadata ?? post.metadata;
+        post.metadata = metadata && Object.keys(metadata).length ? metadata : null;
+
         post.userId = raw.user_id;
         post.originalId = raw.original_id;
         post.pendingPostId = raw.pending_post_id;
@@ -132,6 +137,7 @@ export const transformFileRecord = ({action, database, value}: TransformerArgs):
  */
 export const transformDraftRecord = ({action, database, value}: TransformerArgs): Promise<DraftModel> => {
     const emptyFileInfo: FileInfo[] = [];
+    const emptyPostMetadata: PostMetadata = {};
     const raw = value.raw as Draft;
 
     // We use the raw id as  Draft is client side only and  we would only be creating/deleting drafts
@@ -141,6 +147,7 @@ export const transformDraftRecord = ({action, database, value}: TransformerArgs)
         draft.message = raw?.message ?? '';
         draft.channelId = raw?.channel_id ?? '';
         draft.files = raw?.files ?? emptyFileInfo;
+        draft.metadata = raw?.metadata ?? emptyPostMetadata;
     };
 
     return prepareBaseRecord({