Fixes #63834

Revert "Cleanup new setting description"

This reverts commit b9955185.

Revert "Merge pull request #63457 from IllusionMH/search-actions-align-option-61532"

This reverts commit e8db92f7, reversing
changes made to 4201f517.

When search fails due to a non-standard encoding, show a notification to help people find the new setting

Introduces a new settings option "search.useReplacePreview" which
allows you to disable "Replace Preview" during a Search/Replace.

Closes #60027

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