This fixes unintentional duplications of words, such as `the the`, and
`can can` etc. I also take the chance to make a few wording tweaks to
avoid suspicious duplications.

Fixes #84565: Mark all editor layers as strictly contained (have the layers always pass the opacity check)

The css3 `transform` and `transition` properties are now widely supported. I do not believe we need to ship vendor prefixed rules for these anymore

We compile using the alwaysStrict flag so these directives are not needed.

This part removes most of the remaining use strict directives that were not caught by part 1 and 2

We compile using the alwaysStrict flag so these directives are not needed

This part removes most `use strict` directives that are right after the file header

There are many places in the code that do `import Event, { ...} from '.../event'`.

* adopt the classifier;

Fix horizontal revealing of a range (in the smooth scrolling case where the line containing the range might come in the viewport at a later time)

* use `dom.scheduleAtNextAnimationFrame`

* have explicit methods for changing the scroll position (delayed/smooth vs now/direct) that bubble up to the editor internals.
* have all other clients of ScrollableElement not use smooth scrolling

Use will-change to hint browser layers for the lines content and the margin layers instead of using translate3d ((Microsoft/monaco-editor#426))

Do not use translate3d in scrollbars, use will-change for scrollbar sliders instead (Microsoft/monaco-editor#426)