* fix(docs): typos which were reflacted from vale linter's command
* feat: Implement Vale linter (#2031)
Initialize .vale.ini file
Add 'lint:docs' script to package.json, to lint all md files except the ones which are located in node_modules
Generate 'vocab.txt' by using command 'yarn run lint:docs' | grep -o ''[a-z A-Z]*'' | grep -o '[a-z A-Z]*' | sort | uniq > .github/styles/vocab.txt
Add steps to github workflow 'master' to check docs quality
* chore: Separate workflow for quality checking
* chore: Added 'shx' dev dependency to support grep command in cross platform
* feat: Add script to operate same quality check process on different platform
* ignore: remove lint:docs from lint-stages which was added for experiment purpose
* fix: check-all-files on push event & check-changed-files on pull_request event
* chore(CI): triggle workflow only when there is any updates in .md file(s) on pull request
* fix: use spawnSync to solve 'The command line is too long.' error
* fix: github workflow syntax
* fix: prettier error
* chore: add vale command directly to lint-staged
* chore: use shebang for easy access
* fix: windows script issue & remove shebang
* chore: Add shebang flag
* chore: better error message related to vale
* chore: mention vale linter in documentation
* fix: spelling errors & add keywords to vocab.txt
* refactored sidebar palette types + updated default themes
* use @backstage/theme and new selectedIndicatorColor palette property
* fixed sidebar to use refactored backgroundColor property
* simplified property names based on feedback
* renamed sidebar to navigation in palette
* updated AppThemeApi docs with PaletteAdditions changes
Mayursinh Sarvaiya