[Room][UserList] Introduce style delegate for user list

- Allow users to set a card name and parameters as their background banner
- Allow mods to white/blacklist cards
- Allow toggling back to the old display style

Took 7 minutes

Took 28 seconds

Took 2 minutes

Took 2 minutes

libcockatrice_protocol/libcockatrice/protocol/pb/moderator_commands.proto

@@ -11,6 +11,9 @@ message ModeratorCommand {
         FORCE_ACTIVATE_USER = 1007;
         GET_ADMIN_NOTES = 1008;
         UPDATE_ADMIN_NOTES = 1009;
+        ADD_CARD_ART_RULE = 1010;
+        REMOVE_CARD_ART_RULE = 1011;
+        LIST_CARD_ART_RULES = 1012;
     }
     extensions 100 to max;
 }
@@ -106,3 +109,27 @@ message Command_UpdateAdminNotes {
     optional string user_name = 1;
     optional string notes = 2;
 }
+
+message Command_AddCardArtRule {
+    extend ModeratorCommand {
+        optional Command_AddCardArtRule ext = 1010;
+    }
+
+    optional string card_name = 1;
+    optional string mode = 2; // "ALLOW" or "DENY"
+    optional string reason = 3;
+}
+
+message Command_RemoveCardArtRule {
+    extend ModeratorCommand {
+        optional Command_RemoveCardArtRule ext = 1011;
+    }
+
+    optional string card_name = 1;
+}
+
+message Command_ListCardArtRules {
+    extend ModeratorCommand {
+        optional Command_ListCardArtRules ext = 1012;
+    }
+}