fix(recent-searches): escape highlighted query regex

[shortcuts]

Summary
The previous RegEx was not escaping parentheses or question marks in recent searches.

Actual behavior

• Parentheses: Throw an error when a parenthesis is typed invalid regex
• Question marks: Duplicates the question mark when it's typed (e.g. with query Amazon? result is Amazon??)
  and then throwing error while trying to replace the `item.query

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[Haroenv]

I think the replaceAll option is more suitable, since it can be polyfilled

[shortcuts]

waiting for @francoischalifour's opinion before merging

[francoischalifour]

Great catch—thank you!