refactor: generators

[rishabh3112]

What kind of change does this PR introduce?
refactor and type fixes

Did you add tests for your changes?
No

If relevant, did you update the documentation?
No

Summary

• Standardize the templates location for init-generator
• Created template location for addon-generator
• Cleanup and remove duplicate code by refactoring writing section
• Explicit mention types in configtest
• Add types for changes done to generator

Does this PR introduce a breaking change?
No

Other information
No

[codecov]

Codecov Report

Merging #2328 (59405be) into master (8e7fbef) will not change coverage.
The diff coverage is 87.50%.

@@           Coverage Diff           @@
##           master    #2328   +/-   ##
=======================================
  Coverage   67.48%   67.48%           
=======================================
  Files          64       64           
  Lines        2519     2519           
  Branches      589      589           
=======================================
  Hits         1700     1700           
  Misses        819      819           

Impacted Files	Coverage Δ
packages/generators/addon-template/package.json.js	100.00% <ø> (ø)
packages/generators/init-template/package.json.js	100.00% <ø> (ø)
packages/generators/init-template/tsconfig.json.js	100.00% <ø> (ø)
packages/generators/src/types/index.ts	100.00% <ø> (ø)
packages/generators/src/init-generator.ts	90.00% <83.33%> (ø)
packages/configtest/src/index.ts	94.73% <100.00%> (ø)
packages/generators/src/addon-generator.ts	94.11% <100.00%> (ø)

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[rishabh3112]

/cc @alexander-akait

[alexander-akait]

Don't forget to add them in files

[rishabh3112]

Don't forget to add them in files

I didn't get what you said.

[alexander-akait]

look at the files field in package.json, because we should publish additional directories with package too

[rishabh3112]

Sure, will do.

[snitin315]

Canceled the run because it would have failed for webpack@latest

[snitin315]

Need to fix CI

[webpack-bot]

@alexander-akait Thanks for your update.

I labeled the Pull Request so reviewers will review it again.

@snitin315 Please review the new changes.