Use `lootGameName()` and `displayGameName()` in initial places

[Twinki14]

Motivations

• https://github.com/ModOrganizer2/modorganizer-game_ttw/pull/36#discussion_r1605285526 Surfaced desires to change the Fallout TTW plugin's gameName to something more obvious, from TTW to Tale of Two Wastelands, but that would cause existing profiles to break, displayGameName() added in https://github.com/ModOrganizer2/modorganizer-uibase/pull/141 gives us the option to customize the way the game plugin is displayed without affecting the integral gameName()
• Similarly https://github.com/ModOrganizer2/modorganizer-game_ttw/pull/36 attempted to fix the sort button LOOT cli argument by changing the gameShortName() as 'TTW' isn't a valid option for LOOT, but that also might break existing profiles in some way, lootGameName() will let us fix this without the possibility of breaking existing profiles

Modifications

• Use displayGameName() in create instance dialogs & the main window, this doesn't cover all places gameName() was being used for purely display reasons, but it covers the bulk
• Use lootGameName() instead of gameShortName() for LOOT cli initiation

[Twinki14]

Note, it's expected the build will fail until https://github.com/ModOrganizer2/modorganizer-uibase/pull/141 is merged

[Holt59]

Merged manually due to conflict on translation file (+ added change to status bar), https://github.com/ModOrganizer2/modorganizer/commit/1871f32a8db7e707a6d96a41f09147d8558e0003