Config, Texture and Map updates

[lavenderdotpet]

this pull req contains updated for

• configs to get librequake looking more constant between engines
• engine specific menu icons
• updates to the lq_dev.wad
• a new wad lq_palette.wad that takes all the flat colors from the dev wad
• updates to all the transition/temp maps
• updates to the 2 start maps "start and start_e0"
  • dev map was also updated

old commit msg

im so sorry that this is all under 1 pull req 

did my best to write well in the more recent commits 

with this commit 
its gonna break some textures on maps on main due to 
https://github.com/MissLavender-LQ/LibreQuake/commit/c93f639b83f27e79a1e04f50de746e6965c69f03

i need to have this merged so i can then fix those issues since some maps are newer on main then in my branch```

[MotoLegacy]

Marked all as resolved, just change the PR name and I'll be happy to approve review :)

[lavenderdotpet]

Marked all as resolved, just change the PR name and I'll be happy to approve review :)

with this commit its gonna break some textures on maps on main due to c93f639

i need to have this merged so i can then fix those issues since some maps are newer on main then in my branch

fixing this first since i remembered i can pull main into this branch even if my branch is behind