Quick: Complete Core fix for section header colors

[wesleyboar]

Requires

• Hotfix: Header Colors to Match Production Core-CMS-Resources#101

Overview

Set color of headings within a Sections to respect whether section is light or dark.

This is a more complete fix than #384.

Issues

After FP-1252 (cloning prod to pre-prod), this bug was discovered, which must be fixed before FP-1273 (deploy).

• FP-1273: [...] Prep for Deploy
• FP-1252: Clone Frontera CMS Prod to Pre-Prod

Screenshots

Headings are fixed. (Before, white text could appear on white background, or dark text on dark background.)

Pre-Prod Fixed	Prod (Goal)	Notes
		banner text bkgd† sysmon badge*

* The banner text background difference is a bug, a known issue, to fix in a separate PR.

† Warning badge for System Monitor maintenance is new orange color. This is a pre-existing fix, not a bug. production is using portal warning color, which Design did declare was for CMS.

Testing

Confirm that heading colors in pre-prod match production.

Last Recorded Testable Build:

• branch: hotfix/wrong-heading-text-colors-on-home-page
• CMS image: https://jenkins01.tacc.utexas.edu/job/Core_CMS/278/
• deploy: https://jenkins01.tacc.utexas.edu/job/Core_Portal_Deploy/778

[wesleyboar]

Merging because:

1. Frontera CMS may deployed this week, and should not cause such obvious bugs as these. I was only just able to realize these bugs, yesterday, after FP-1252 was completed.
2. Related fix Hotfix: Frontera: White Text for Home Banner H3's Core-CMS-Resources#100 was merged.
3. Taking advantage of admin privilege.