* untitled - change mode when found in paste data

* do not update mode for readonly editors

Fixes #75283

Have 'Format Document' and 'Format Document With...' at the same time, show message when formatting document with first provider,  #41882

format - extract formatting logic, make it so that we potentially run multiple providers sequentially (off for now)

Fixes Microsoft/vscode#15043 Format selection keyboard shortcut will apply to current line if no selection in editor.

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

Also rename variable textFocus to editorTextFocus