fix: import next.config.js in Windows

[luwes]

related #151

it's fixed, the issue seems to be that Windows path.resolve() behaves differently than Unix.
it did require a cwd() argument while Unix didn't it seemed.

path.resolve(cwd(), file);

I also added pathToFileURL to make sure it's a valid URL for JS dynamic import() because it expects an URL, not a path.
nodejs/node#34765

[codecov-commenter]

Codecov Report

Attention: 15 lines in your changes are missing coverage. Please review.

Comparison is base (2ae04bf) 57.94% compared to head (828cf71) 58.43%.
Report is 4 commits behind head on main.

Files	Patch %	Lines
src/components/utils.ts	80.00%	7 Missing ⚠️
src/config.ts	61.53%	4 Missing and 1 partial ⚠️
src/components/video.tsx	40.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #159      +/-   ##
==========================================
+ Coverage   57.94%   58.43%   +0.49%     
==========================================
  Files          29       30       +1     
  Lines        2166     2216      +50     
  Branches      110      120      +10     
==========================================
+ Hits         1255     1295      +40     
- Misses        909      916       +7     
- Partials        2        5       +3     

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[heff]

lgtm, one suggestion