Replace Contextual Links BackboneJS usage with VanillaJS equivalent

Fixed some of indentation error. Keeping it Needs work to fix PHPStan error

Re-roll patch #36 and Try to fix Cs issue

fix command failures #37

Try To Fix the #38 Patch.

@Prem Suthar, Interdiff is missing in #39, We should add that along with the patch. Its help to the reviewers to find the difference and what are the changes we have made from last patch. Also some Tests fails because some of the files are missing in the patch. Please compare with #26.

Re-roll patch created for 11.x, We have added some missing JS files according to #26 and removed es6.js files with reference of this document → . Keeps as is "Needs work" because we have some unaddressed comments above.