Code action to convert JS string to template literal

[adelphes]

Something small which I find myself constantly doing while editing javascript...

Having typed a literal string using single/double-quotes, I then find I need to embed an expression and so need to manually navigate to convert the start and end quotes to backticks.

It would be super useful to have a code action which either:

• shows a refactoring option to "convert to template string". This would simply replace the start and end quotes with backticks (and probably auto-escape any existing backticks within the string).
• automagically converts to a template string if any instances of ${ are typed in the string.

I'd be happy to look into creating a PR for this, but just wondering if anyone else has this issue or if a better solution already exists.

[mjbvz]

Similar to #18267