Only Lint Source Files

[threeal]

This issue suggests modifying the lint script to only lint the source files in the src directory instead of linting all files in the root directory. This change is proposed to shorten the scope of the files that will be processed by the lint script. This change will be useful, especially if there are distribution files included in the project that should not be linted or if there are other workspaces inside this project that should also not be linted.