Allow pulling active matches in /matches endpoint

[someonecantcode]

Closes #11636

Gives the option for users to get active rooms via active query by checking if the end_time is null. When active query is false, it does the same default behavior of returning active & unactive rooms like when normally getting /matches. It wasn't really clear in the issue if when active=false, it should show inactive rooms, so I just made it have the same behavior of showing active & unactive matches.

Do I need to add or do anything for this page also?
link: https://osu.ppy.sh/docs/index.html#matches

endpoint examples:

/matches?active=1  
/matches?active=true

api examples

teawsl@egghead:~/osu-web$ curl -H "Authorization: Bearer $TOKEN"   \ --get http://localhost:8080/api/v2/matches
{
  "matches": [
    {
      "id": 2,
      "start_time": "2025-09-23T00:52:33+00:00",
      "end_time": "2025-09-23T01:47:33+00:00",
      "name": "inactive 1"
    },
    {
      "id": 1,
      "start_time": "2025-09-23T01:42:33+00:00",
      "end_time": null,
      "name": "active 1"
    }
  ],
  "params": {
    "limit": 50,
    "sort": "id_desc",
    "active": null
  },
  "cursor": null,
  "cursor_string": null
}

teawsl@egghead:~/osu-web$ curl -H "Authorization: Bearer $TOKEN"  \ --get  http://localhost:8080/api/v2/matches?active=1
{
  "matches": [
    {
      "id": 1,
      "start_time": "2025-09-23T01:42:33+00:00",
      "end_time": null,
      "name": "active 1"
    }
  ],
  "params": {
    "limit": 50,
    "sort": "id_desc",
    "active": true
  },
  "cursor": null,
  "cursor_string": null
}