[FEATURE] Add controller input for the Failed Connection dialog #461
Description
User Story
As a controller user, I want the Failed Connection dialog to support controller input so that I can close the dialog without need to use a mouse.
Envisioned Solution
Add a controller face button mapping and UX to the Close button. Use the same controller button as the Back button in the character select and start game screens.
Additional context
On a steamdeck with an external controller, if you hold the Steam button the right trackpad becomes a mouse input. This is the only way to close the window with only a controller as external input, but this causes the controller input to stutter becoming unusable. The only solution is to restart Valheim after getting the Failed Connection dialog.