feat: Achievement medal overview (#4487)

## Description:

In the spirit of achievement hunting, seeing how many medals a player
has achieved helps show overall progress. Overview only toggles on when
user clicks toggle achievements button. Works on mobile too.


https://github.com/user-attachments/assets/ea77075b-5e91-4e62-8ac9-52bcdf95cc64

## 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

@@ -1253,6 +1253,8 @@
     "max_timer": "Game length (minutes)",
     "max_timer_invalid": "Please enter a valid max timer value (1-120 minutes)",
     "max_timer_placeholder": "Mins",
+    "medals_earned": "Medals",
+    "medals_of_maps": "out of {total} maps",
     "nations": "Nations: ",
     "nations_disabled": "Disabled",
     "options_changed_no_achievements": "Custom settings – achievements disabled",