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/tests/api/notifications/notifications-api.ts

@@ -38,6 +38,16 @@ describe('Test notifications API', function () {
     await waitJobs([ server ])
   })
 
+  describe('Notification list & count', function () {
+
+    it('Should correctly list notifications', async function () {
+      const { data, total } = await server.notifications.list({ token: userToken, start: 0, count: 2 })
+
+      expect(data).to.have.lengthOf(2)
+      expect(total).to.equal(10)
+    })
+  })
+
   describe('Mark as read', function () {
 
     it('Should mark as read some notifications', async function () {