feat: setup keyboard shortcuts modal

[elevatebart]

• Closes https://cypress-io.atlassian.net/browse/UNIFY-554

User facing changelog

Screen.Recording.2021-11-09.at.5.56.47.PM.mov

Additional changes

• When the help link of a modal is forced to empty, I hide the help link.

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[cypress]

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Test summary

18646 • 3 • 216 • 7 • 7

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Run details

Project	cypress
Status	Failed
Commit	4d714d6
Started	Nov 10, 2021 12:06 AM
Ended	Nov 10, 2021 12:18 AM
Duration	12:02 💡
OS	Linux Debian - 10.9
Browser	Multiple

View run in Cypress Dashboard ➡️

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Failures

Run group: 5x-driver-electron (Linux, Electron )
	commands/net_stubbing_spec.ts		1
1	network stubbing > intercepting request > should delay the same amount on every response
	commands/assertions_spec.js		1
1	... > rejects any element not in the document
Run group: 2x-desktop-gui (Linux, Electron )
	settings_spec.js		1
1	Settings > file preference panel > loads preferred editor and available editors

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Flakiness

	net_stubbing_spec.ts		3
1	network stubbing > waiting and aliasing > can timeout waiting on a single request using "alias.request"
2	network stubbing > waiting and aliasing > can timeout waiting on a single response using "alias.response"
3	network stubbing > waiting and aliasing > can timeout incrementally waiting on responses
	navigation_spec.js		1
1	src/cy/commands/navigation > #visit > window immediately resolves and doesn't reload when visiting the same URL with hashes
	assertions_spec.js		1
1	... > rejects any element not in the document
This comment includes only the first 5 flaky tests. See all 7 flaky tests in the Cypress Dashboard.

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