Release polyfills birthday · mfranzke/loading-attribute-polyfill

It's polyfills birthday today! Yeah! So to cheer this, we're releasing the new major release. See migration guide on how to upgrade from v1.x

Further entries for npm package to ignore files
Adapted code of conduct
GitHub's static analysis engine CodeQL to check against our repository's source code to find security vulnerabilities
Dependabot to ensure devDependencies are up to date (!106)
Automated Mozilla Firefox testing via crossbrowsertesting
Automated Microsoft Internet Explorer 9 testing via crossbrowsertesting

BREAKING CHANGE: Even also generate JS modules from now on supported by microbundle, added the relevant property entries within the package.json directing to those files, that are now stored within the dist/ folder (see migration guide #19, #87, #39)
Moved the webdriverio config file to its subdirectory
Corrected the bower ignore entries
Bump html-validate to 4.9.0 (#126)
Code regarding codacys feedback
Bump webdriverio dependencies
devDependency: bump husky 6.0.0 (a.o. !110)
build(deps-dev): bump html-validate from 4.6.1 to 4.8.0
build(deps-dev): bump webdriverio dependencies
Optimized the demo pages functionality for dynamic images, by adding a button
refactor: replacing requestAnimationFrame by will-change: contents (CSS)
build(deps-dev): bump @commitlint dependencies from 12.0.1 to 12.1.1
chore: moved source file to subfolder for better structure
some formatting and codacy feedback

BREAKING CHANGE: wrapping the <picture> HTML tag instead of its content with <noscript> to prevent W3C HTML validator errors (see migration guide #90)
testing: updated the tools and removed some old code to make crossbrowsertesting.com work again (!100)
browsers capabilities: we need to differentiate in between image and iframe capability, as Firefox only supports images for now, but not iframes

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