[Glitch] Fix some account avatars on public pages having incorrect size

Port 48503384d0 to glitch-soc

Signed-off-by: Thibaut Girka <thib@sitedethib.com>

app/javascript/flavours/glitch/styles/statuses.scss

@@ -145,6 +145,11 @@
     &__avatar {
       left: 15px;
       top: 17px;
+
+      .account__avatar {
+        width: 48px;
+        height: 48px;
+      }
     }
 
     &__content {