Fix filtering, allow filtering by mentioned usernames

Signed-off-by: marcin mikołajczak <git@mkljczk.pl>

app/soapbox/normalizers/status.ts

@@ -27,6 +27,7 @@ export const StatusRecord = ImmutableRecord({
   emojis: ImmutableList(),
   favourited: false,
   favourites_count: 0,
+  filtered: false,
   in_reply_to_account_id: null,
   in_reply_to_id: null,
   id: '',

app/soapbox/reducers/statuses.ts

@@ -54,14 +54,20 @@ const getPollOptionTitles = (status: StatusRecord): Array<string> => {
   return status.poll?.options.map(({ title }: { title: string }) => title);
 };
 
+// Gets usernames of mentioned users from status
+const getMentionedUsernames = (status: StatusRecord): Array<string> => {
+  return (status as any).mentions?.map(({ username }: { username: string }) => username);
+};
+
 // Creates search text from the status
 const buildSearchContent = (status: StatusRecord): string => {
   const pollOptionTitles = getPollOptionTitles(status);
+  const mentionedUsernames = getMentionedUsernames(status);
 
   const fields = ImmutableList([
     status.spoiler_text,
     status.content,
-  ]).concat(pollOptionTitles);
+  ]).concat(pollOptionTitles).concat(mentionedUsernames);
 
   return unescapeHTML(fields.join('\n\n'));
 };