Feat: Favourite maps tab (#4207)

Resolves #4202 

## Description:

As suggested in some suggestions in the main OF server
[[thread](https://discord.com/channels/1284581928254701718/1472496670267805782)],
we should have a map favouriting system since there are over 70 maps
already. People (myself included) have some maps we constantly play
during solo/private matches, so a favourite tab would be huge.

This feature adds the favourites tab to the solo and private match
selection screens. It works using localStorage for saving (device
persistence) but I can just as easily implement an infra update where
players have a 1-many relation with a `FavouriteMaps` table. That can be
a future solution. Video example right now:


https://github.com/user-attachments/assets/e8e278ab-d305-499a-81a9-d570e05db051


## Please complete the following:

- [x] I have added screenshots for all UI updates
- [x] I process any text displayed to the user through translateText()
and I've added it to the en.json file
- [x] I have added relevant tests to the test directory

## Please put your Discord username so you can be contacted if a bug or
regression is found:

bijx

resources/lang/en.json

@@ -521,6 +521,7 @@
     "map": "Map",
     "featured": "Featured",
     "all": "All",
+    "favorites": "Favourites",
     "world": "World",
     "worldinverted": "World Inverted",
     "giantworldmap": "Giant World Map",
@@ -622,11 +623,15 @@
     "tournament": "Tournament",
     "fantasy": "Other",
     "special": "Special",
-    "arcade": "Arcade"
+    "arcade": "Arcade",
+    "favorites": "Favourites"
   },
   "map_component": {
     "loading": "Loading...",
-    "error": "Error"
+    "error": "Error",
+    "favorite": "Add to favourites",
+    "unfavorite": "Remove from favourites",
+    "favorites_empty": "Click the star on any map to favourite it"
   },
   "private_lobby": {
     "title": "Join Private Lobby",