Rollout Plan: Refactor HTML to resolve HTML linter errors

### Dependency
- #5248
- #5005

### Overview
We aim to make use of an HTML linter to improve the quality, consistency and appearance of our HTML markup. We will audit every page containing html markup, record errors and create issues to resolve the errors using the HfLA audit HTML spreadsheet[^1]

### Action Items
- [ ] Select an HTML linter and appropriate configuration settings
- Consider HTML ESLint[^2], HTMLHint[^3]
- [x] Create HfLA audit HTML spreadsheet[^1]
- [ ] Populate the HfLA audit HTML spreadsheet[^1] with the filepath of each html file in the codebase
- [ ] Create Epic to create issues to audit each page and record errors
- [x] Create Epic to create issues to fix errors see #5279

### Resources/Instructions
[^1]:[HfLA audit HTML spreadsheet](https://docs.google.com/spreadsheets/d/1P6o_ofzfIUPizfhpFmF9p92SNZrpAIEnWNyErWwpRiA/edit#gid=0)
[^2]:[HTML ESLint](https://yeonjuan.github.io/html-eslint/docs/getting-started/)
[^3]:[HTMLHint](https://htmlhint.com/)