Add notice key field to privacy notice form

[allisonking]

Closes #3344

Code Changes

• New component NoticeKeyField which watches for changes to the name field and generates a reasonable key from it when creating a new privacy notice
• Adds lodash snakeCase package to facilitate generating the key
• Removes the larger lodash import that was in package.json since nothing uses that anymore (ideally we import the subpackages of lodash, not all of lodash)
• Cleans up some cypress fixtures that weren't being used
• Cypress tests

Steps to Confirm

• Create some privacy notices
• Use the "Add a privacy notice +" button to add a new notice
• Play around with naming your notice and scroll down to see the key dynamically update
• Edit an existing privacy notice's name
• The key should not dynamically update, and should retain whatever it once had

Note: this does not try to handle the case of what happens if a user edits their notice name, then updates their notice key, then updates their notice name again. This will currently write over the notice key (see first video) which may or may not be what we want. But I didn't want this to get too opinionated without others' input 😄

Pre-Merge Checklist

• All CI Pipelines Succeeded
• Documentation:
  • documentation complete, PR opened in fidesdocs
  • documentation issue created in fidesdocs
• Issue Requirements are Met
• Relevant Follow-Up Issues Created
• Update CHANGELOG.md
• For API changes, the Postman collection has been updated

Description Of Changes

When creating a new privacy notice:

Screen.Recording.2023-05-30.at.8.11.27.PM.mov

When editing a privacy notice name:

Screen.Recording.2023-05-30.at.8.13.51.PM.mov

[cypress]

Passing run #2282 ↗︎

0	4	0	0	0
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Details:

Merge da3377d into e68da2a...
Project: fides	Commit: b3c6a3bccd ℹ️
Status: Passed	Duration: 00:47 💡
Started: May 31, 2023 4:21 PM	Ended: May 31, 2023 4:22 PM

_{This comment has been generated by cypress-bot as a result of this project's GitHub integration settings.}

[eastandwestwind]

looks good to me!