Font icons loading inconsistently

After navigating within the UseGalaxy.org panels for some time, noticed that the following 3 font icons stopped loading. Refreshing fixed the issue. Possibly related to differences in how below icons are called in the codebase compared to the other icons that appear just fine (ie. Pencil-Edit, Play-Arrow, etc). Don't have exact steps to replicate.

1. Window Manager (in top masthead nav)`fa fa-th`
2. Question Mark (in top masthead nav) `fa fa-question`
3. Gear Cog (in section header) `fa fa-cog`

**Galaxy Version and/or server at which you observed the bug**
Galaxy Version: 24.2 on Mon Mar 10, 2025 at 12:00 PM US-ET

**Browser and Operating System**
Operating System: macOS
Browser: Chrome

**To Reproduce**
Steps to reproduce the behavior:
1. (Don't have exact steps to replicate. Hopefully should be obvious in code - just compare different ways icons are displayed and 3 icon placements above should be called differently than the ones that appear correctly on the page.)

**Expected behavior**
A clear and concise description of what you expected to happen.

**Screenshots**

**Additional context**
Probably "moderate" priority, but other icons in the codebase might also need to be adjusted accordingly would Level of Effort could be "high".