GitHub Actions Tidy-up (#3114)

- Allow CodeQL workflow to be run from GitHub Actions WebUI at any time
- Set CodeQL to also check for best practises/code problems (as well as security)
- Capitalize Publish GH Action
- Change Windows Test workflow for consistent file extension (also means its formatted with Prettier) and remove leading empty linebreak
- Run Prettier (maybe we should add this to build script to ensure all code is formatted?)
- Change .gitattributes to have LF line-endings for more file types

gulpfile.mjs

@@ -107,7 +107,7 @@ gulp.task('copy:misc', () =>
         // (other tasks will handle the copying of these files)
         `!${dirs.src}/css/main.css`,
         `!${dirs.src}/index.html`,
-        `!**/.DS_Store`
+        `!**/.DS_Store`,
       ],
       {
         encoding: false,