Fix moveSelectionToPreviousFindMatch accidentally mapped to addSelectionToPreviousFindMatch

#36662

fixes #37033

hc-blck -> hc-black

Fix #31496 - add new actions, "Find in Files With Selected Text" which are bound to editorFocus, to prevent the search viewlet from ever taking the editor text unless the editor is focused

Fixes #32042

Fix #27802 - show a warning for a regex that contains a backreference. Ripgrep interprets this as an octal escape sequence, instead of a backreference.

Fixes #37087

Fixed incorrect syntax in the semicolon setting. TSlint does give a warning, if you set the set "always" as the first parameter. It expects a boolean as the first and "always" as the second.
More information you will find here: https://palantir.github.io/tslint/rules/semicolon/

Consolidate env merge logic and add tests

Fixes #35798
Fixes #36541

Fixes #37072