This moves us closer to using iframes directly instead of webview elements

* Support --enabled-proposed-api thorugh argv.json
Closes #99775

* Fix typos.

* Apply suggestions from code review
Co-authored-by: NBenjamin Pasero <benjpas@microsoft.com>
Co-authored-by: NBenjamin Pasero <benjpas@microsoft.com>

Fixes #99245

This scheme (specifically the old style uris of the scheme) do not conform to the requirements of a standard uri

Fixes #99190

* Add vscode-webview-resource protocol

Adds a new protocol (`vscode-webview-resource`) for loading resources insides of webviews. This replaces the existing `vscode-resource` protocol and is registered on the main thread instead of in each renderer

This change also adds some rewriting logic to update any `vscode-resource:` references found in the main html to use `vscode-webview-resource` instead.

* Move webview protcol provider to own file

* Remove registration of vscode-resource scheme

* Remove use or parition for each webview

Now that we have a single shared protocol handler, we do not need to run each webview in its own partition

* Fix rewriting csp to use new protocol

* Update src/vs/code/electron-main/app.ts
Co-authored-by: NBenjamin Pasero <benjpas@microsoft.com>
Co-authored-by: NBenjamin Pasero <benjpas@microsoft.com>

* cleanup open-url handling

* open url - allow to open a remote workpsace without opening a window first

* help build

* undo build change

* support files too

Revert "linux: automatically set force-renderer-accessibility when user sets editor.accessibilitySupport"

This reverts commit ee74224b.

#90446

* fix: don't use appendArgument to add switch values

* args - make sure to allow to enabe color correct rendering

Restore pre 1.40 way of setting disable-color-correct-rendering in electron (#84154) (#84269) (#84296)

* update to electron 6.0.x

* chore: bump electron@6.0.12

This reverts commit c93c7313.

Fixed a typo; "letiable" (to "variable").