CSRF filters: split .all() calls in route files

[mkalam-alami]

Leftovers from #273

• [x] Convert all .all calls on the router to .get and/or .post as appropriate to make it clear which endpoints actually accept POSTs.
• [ ] Additionally, find any GET endpoints that have side effects and replace these by POSTs.

28/02 Remaining controllers to review:

./admin/settings/admin-settings.controller.ts
./admin/status/admin-status.controller.ts
./admin/tags/admin-tags.controller.ts
./admin/users/admin-users.controller.ts
./api/api.controller.ts
./docs/article.controller.ts
./docs/changes/changes.controller.ts
./entry/highscore/highscore-submit.controller.ts
./entry/highscore/highscores.controller.ts
./entry/manage/entry-manage-scores.controller.ts
./entry/manage/entry-manage.controller.ts
./entry/team/team-invite.controller.ts
./entry/view/entry-view.controller.ts
./event/dashboard/event-join.controller.ts
./event/dashboard/event-my-dashboard-streamer.controller.ts
./event/dashboard/event-my-dashboard.controller.ts
./event/games/event-games.controller.ts
./event/home/event-home.controller.ts
./event/manage/create/event-create.controller.ts
./event/manage/entries/event-manage-entries.controller.ts
./event/manage/rankings/event-manage-rankings.controller.ts
./event/manage/settings/event-settings.controller.ts
./event/manage/themes/event-manage-themes.controller.ts
./event/manage/tournament/event-manage-tournament.controller.ts
./event/posts/event-posts.controller.ts
./event/ratings/ratings.controller.ts
./event/results/results.controller.ts
./event/streamers/streamers.controller.ts
./event/theme/theme.controller.ts
./event/tournament/tournament-games.controller.ts
./event/tournament/tournament-leaderboard.controller.ts
./explore/chat.controller.ts
./explore/events.controller.ts
./explore/games.controller.ts
./explore/people-mods.controller.ts
./explore/people.controller.ts
./home/home.controller.ts
./post/comment/comment.controller.ts
./post/like/like.controller.ts
./post/manage/post-manage.controller.ts
./post/post-view.controller.ts
./post/post-watch.controller.ts
./post/posts-view.controller.ts
./user/authentication/login.controller.ts
./user/authentication/logout.controller.ts
./user/authentication/password-recovery/password-recovery-request.controller.ts
./user/authentication/password-recovery/password-recovery.controller.ts
./user/authentication/register.controller.ts
./user/dashboard/entries/dashboard-entries.controller.ts
./user/dashboard/entries/dashboard-entry-import.controller.ts
./user/dashboard/feed/dashboard-feed.controller.ts
./user/dashboard/password/dashboard-password.controller.ts
./user/dashboard/posts/dashboard-posts.controller.ts
./user/dashboard/scores/dashboard-scores.controller.ts
./user/dashboard/settings/dashboard-settings.controller.ts
./user/user-profile.controller.ts