DRAFT: replace jquery in project find file

What does this MR do and why?

Describe in detail what your merge request does and why.

Screenshots or screen recordings

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How to set up and validate locally

Jest tests

$ yarn jest spec/frontend/projects/project_find_file_spec

RSpec tests

$ bin/rspec ./spec/features/projects/files/user_find_file_spec.rb ./spec/features/projects/files/find_file_keyboard_spec.rb

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

Related to #362996