* Remove .travis.yml reference from .gitattributes
* Minor refactoring of .svglintrc.js
- Remove unused variables
- Fix missing semi-colons
- Remove unneeded indentation
* Prevent error in clean command due to missing files
* Fix indentations
* Further improvements to Editorconfig and indentation
* Format YAML files
- Update indentation for array notation
- Normalize use of newlines
* Add workflow file to run PR labeler and corresponding configuration file
I'm using my personal fork of https://github.com/actions/labeler because
I could not any labeling action that checked whether a file was added or
changed (or removed).
* Fix typo in Labeler action configuration file
