Implement avatar miniatures (#4639)

* client: remove unused file

* refactor(client/my-actor-avatar): size from input

Read size from component input instead of scss, to make it possible to
use smaller avatar images when implemented.

* implement avatar miniatures

close #4560

* fix(test): max file size

* fix(search-index): normalize res acc to avatarMini

* refactor avatars to an array

* client/search: resize channel avatar to 120

* refactor(client/videos): remove unused function

* client(actor-avatar): set default size

* fix tests and avatars full result

When findOne is used only an array containting one avatar is returned.

* update migration version and version notations

* server/search: harmonize normalizing

* Cleanup avatar miniature PR

Co-authored-by: Chocobozzz <me@florianbigard.com>

server/models/utils.ts

@@ -181,7 +181,7 @@ function buildServerIdsFollowedBy (actorId: any) {
     'SELECT "actor"."serverId" FROM "actorFollow" ' +
     'INNER JOIN "actor" ON actor.id = "actorFollow"."targetActorId" ' +
     'WHERE "actorFollow"."actorId" = ' + actorIdNumber +
-    ')'
+  ')'
 }
 
 function buildWhereIdOrUUID (id: number | string) {