UI improvements: Layout

[jeremystretch]

Proposed Changes

This issue addresses some items from our recent UI evaluation, specifically those related to layout.

• Move footer icons to bottom of nav bar (?)
• Nav menu: Only show add & import nav buttons on hover (?)
• Change object list tab text to "records"
• Rename "filter" box to "quick find"
• Move "help" button closer to form on object creation view
• Remove lines & increase space between form sections
• Add a "sticky" navigation panel for large forms (?)
• Condense all "actions" table columns to dropdowns See Include actions menu on all object tables #7679
• Page footer should be forced to bottom of window

Justification

Cosmetic improvements to the user interface

[jeremystretch]

IIRC we originally had the footer icons inside the nav bar, but moved them into the page body to work around an issue with vertical sizing.