feat: Ingredients parser UX - Slightly improve controls

[CloCkWeRX]

What this PR does / why we need it:

Rearranges the save/parse/etc controls on ingredient editing so that:

• Save/cancel is always on screen for long lists
• Parse all is shifted to its own "form"

After:

Which issue(s) this PR fixes:

Part of #4954

Special notes for your reviewer:

If there's a preferred style or background for floating action buttons/navs; happy to implement. Current approach overlays content in a weird way.

Testing

Regression tested locally with chrome dev tools (desktop,, mobile).

[haileyrs]

Would you consider leaving the Save and Cancel buttons at the top and including a copy of those buttons at the end of the ingredients list? In my experience using the parser, I scroll to the end of the list every time to make sure that every ingredient is correct, and I think it's likely that a lot of people do the same. In that situation, floating the buttons isn't really necessary, and doing it this way would alleviate the issue of having a strange overlay.

[github-actions]

This PR is stale because it has been open 45 days with no activity.