Initial implementation of friendlier errors

[patrick91]

I'll add a proper description later, this PR is just for testing the CI steps.

Related: #2107

TODO:

• assert that documentation exists (via pytest)
• make all of this optional (flag and checking for imports)
• Don't fail bad if ast parsing fails (for example with dynamic code)
• don't add libcst as main dependency
• print standard exception if we can't find the source (?)
• redirect from errors.strawberry.rocks
• add group to allow installing everything (strawberry-graphql[cli] should ok)

Future release:

• Errors in wasm (if libcst works)

[codecov]

Codecov Report

Merging #2027 (81ab49e) into main (39edd31) will decrease coverage by 0.06%.
The diff coverage is 96.71%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2027      +/-   ##
==========================================
- Coverage   97.87%   97.80%   -0.07%     
==========================================
  Files         163      180      +17     
  Lines        6688     7299     +611     
  Branches     1251     1316      +65     
==========================================
+ Hits         6546     7139     +593     
- Misses         69       76       +7     
- Partials       73       84      +11     

[patrick91]

/pre-release

[patrick91]

/pre-release

[patrick91]

/pre-release

[patrick91]

/pre-release