Replace vscode-xterm with official xterm

mark .config/git/config as properties file

Move checked bg in resource viewer under the image

adopt toggled in view and appearance menu 

fixes #74455

Fixes #58718

Also includes corresponding theme changes

Fixes #74450

Fixes #74602

debt - decouple webviews from code insets, move things to /browser/-layer, change inset api proposal to push style, re #66418

* Bump electron@4.0.0-beta.9

* electron 4 - temporarily warn about exploration change

* update to Electron 4.0.0 stable

* remove electron 4 notification

* bump to electron@4.0.1

* electron 4: adopt format change of "version" file

* build - set to use exploration image

* Revert "build - set to use exploration image"

This reverts commit 1bb280fc.

* electron@4.0.2

* fix electron.d.ts

* update distro

* bump electron@4.0.4

* debt - adopt new process.getProcessMemoryInfo()

* update electron@4.0.5

* electron@4.0.6

* electron 4.0.x - remove Linux 32bit build

* electron@4.0.7

* electron - update to 4.1.2

* bump electron@4.1.4

* update build (remove Linux32)

* electron@4.1.5

* electron 4 - remove linux 32bit warning

* Remove more 32-bit Linux build stuff

Fixes #66271

* electron@4.2.0

* electron@4.2.1

* electron@4.2.2

* electron@4.2.3

* Revert "electron@4.2.3"

This reverts commit ae375ef764a13ccffbec1fdef15926d814d90872.

* Revert "Revert "electron@4.2.3""

This reverts commit 513581ebc59bfa1af574ea40d61974492b0db64f.