* Initial work on "search in open editors"

* Update wording

* Update messaging for open editors config

* Add command to open all git changes (in association with searching in all open editors)

* Add strict parsing mode to search using providers for specific files

* Clean

* Remove log

* Naming

* Transfer open editors config to search editor

* Pass in more places

* Add some testing

Refs: #1866

fs.realpath.native in NodeJS uses the Win32 API function GetFinalPathNameByHandle() on Windows hosts,
therefore a given path must follow the guidelines for Win32 API file functions.
Drive letters on Windows need to end on a backslash according to the Win32 File Naming Conventions (https://docs.microsoft.com/en-us/windows/win32/fileio/naming-a-file)
Omitting the backslash results in Windows treating the remaining path components as a relative path starting from the current directory on the specified disk
https://docs.microsoft.com/en-us/windows/win32/fileio/naming-a-file#fully-qualified-vs-relative-paths

Changes to use env

make event optional, event naming, relax badge length a little, https://github.com/microsoft/vscode/issues/54938

* wip: try to use vscode.open and vscode.diff in git/scm

related to #110397

* 💄

* revert change to commands.converter.toInternal

* complete usage os vscode.open and vscode.diff in git extension