feat: use regex based TextMatch for suggestions

[smeijer]

What:
I've adjusted the query suggestions to use regex-based text matchers when possible. This impacts all query methods, except for the Role variants. I believe roles need to be exact.

Currently, suggestions like these are made:

screen.getByRole('button', { name: /google search/i }) // regex name option
screen.getByText('A privacy reminder from Google')     // string text arg

With this PR, the same suggestions look like:

screen.getByRole('button', { name: /google search/i }) // regex name option
screen.getByText(/a privacy reminder from google/i)    // regex text arg

Why:
Because I believe that tests shouldn't fail due to a change in capitalization.

For that same reason, we already did this for name option in Role queries:

// current suggestion results 
screen.getByRole('button', { name: /search/i });
screen.getByRole('link', { name: /english/i });

So it only makes sense to do this for other queries as well.

How:
In the makeSuggestion function, the TextMatch is now wrapped in a regex when the query name isn't Role. Nothing fancy, just query !== 'Role' => text = new RegExp(text.toLowerCase(), 'i')

Checklist:

• Documentation added to the
  docs site
• I've prepared a PR for types targeting
  DefinitelyTyped
• Tests
• Ready to be merged
  

I've also added .idea to .gitignore. Am I really the only one who's using WebStorm? 😱

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[codecov]

Codecov Report

Merging #617 into master will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master      #617   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           24        24           
  Lines          555       558    +3     
  Branches       138       140    +2     
=========================================
+ Hits           555       558    +3     

Impacted Files	Coverage Δ
src/suggestions.js	100.00% <100.00%> (ø)

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[kentcdodds]

Super duper. Thanks!

[kentcdodds]

🎉 This PR is included in version 7.12.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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