feat!: Vite 5 support

[aklinker1]

This closes #240

• Checks pass
• No warnings in dev mode
• Add separate build type for .css entrypoints

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[aklinker1]

Can't get types working while supporting vite 4 and vite 5, so I'm making this a breaking change and only supporting vite 5 for WXT 0.11+

[codecov]

Codecov Report

Attention: 19 lines in your changes are missing coverage. Please review.

Comparison is base (f922648) 65.69% compared to head (fb43c6d) 70.15%.

Files	Patch %	Lines
src/core/builders/vite/index.ts	42.42%	19 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #261      +/-   ##
==========================================
+ Coverage   65.69%   70.15%   +4.45%     
==========================================
  Files          78      130      +52     
  Lines        5926     7247    +1321     
  Branches      469      566      +97     
==========================================
+ Hits         3893     5084    +1191     
- Misses       1997     2114     +117     
- Partials       36       49      +13     

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[aklinker1]

Alright, everything is working, and the templates all work except Solid's. I've disabled it's validation for now since it's known to not work against the latest main branch, and will merge.