fix: codegen error on layers extend

[cpreston321]

fixes: #271

@Diizzayy what basically happen'd -- it was watching on all paths of extend even in node_modules/ folder that would not map to any client docs then error out but where all the same file. To resolve this we block all unlink events and path changes in ../ that basically represent the theme it's extending in watch mode.

example of event:

✔ Nitro built in 420 ms                                                                                                                         nitro 10:02:50
[add] PATH:  ../basic/node_modules/nuxt-graphql-client/examples/extends/queries/test2.gql                                                             10:03:00
allowDocument:  true                                                                                                                                  10:03:00
[add] PATH:  ../basic/node_modules/nuxt-graphql-client/playground/node_modules/nuxt-graphql-client/examples/extends/queries/test2.gql                 10:03:00
allowDocument:  true                                                                                                                                  10:03:00
[unlink] PATH:  queries/test1.gql 

[codecov]

Codecov Report

Merging #274 (a4a9bb7) into main (7207c06) will decrease coverage by 0.45%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main     #274      +/-   ##
==========================================
- Coverage   93.70%   93.25%   -0.46%     
==========================================
  Files           6        6              
  Lines         620      623       +3     
  Branches      122      122              
==========================================
  Hits          581      581              
- Misses         39       42       +3     

Impacted Files	Coverage Δ
src/module.ts	89.09% <0.00%> (-0.82%)	⬇️

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