[EPIC] Post-migration tasks

[beechnut]

Tasks

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1. Fix inaccessible images #3862
   type:bug +1
   
2. Social media sidebar links aren't getting fixed by our custom markdown renderers. Figure this out and refactor our renderers so they're more legible/maintainable
3. Remove all the site.baseurls, using image shortcodes or the URL filter wherever they remain
4. Convert blog post images from <img> tags to image shortcodes
5. Add code block line numbers
6. /tags is a weird page
7. Tags are inconsistently capitalized (see sidebar in /blog vs /tags)
8. Add validations in a pre-build step. e.g. only two guides can have featured: true at a time; all pages should have layouts specified; front matter and path dates must match; six projects must be pinned in order; ...
9. Let us conditionally hide blog post banners, esp for smaller-width images - (@beechnut fixed when re-implementing hero: false)
10. Add validation: Prevent h1s in blog post source markdown, see #4006, https://github.com/18F/TLC-crew/issues/884
11. Un-ignore ESLint comments, and/or switch the site and 18F/guides to standardjs
12. Speed up build by optimizing data lookups. Instead of doing it dynamically in templates, set up some JS in the pre-build stage to cache data values that you can just read in the template (caution: this is making a lot of assumptions about where the build is slow)
13. Fix all width-\d+ classes in _sass/components/utilities.scss link
14. Reconsider the image for the Alaska DHSS case study
15. Link to partnership principles from footer, /about, /our-work
16. Replace weighted_sort #3973
    0 of 2
    +0
    
17. Add profile photos to author pages when available, opt-in
18. Add fallback style for legacy figure captions in the hero #3977
    type:bug +1
19. Uninstall Eleventy Navigation plugin.
20. https://github.com/18F/TLC-crew/issues/862
21. Consider setting up a revisit frontmatter variable for posts we want to update and revisit, like Melody Kramer's technical tutorials, so the build alerts when it's been a year since the last update
22. Test site setup with dev-adjacent folks (product designers etc)
23. Change all hardcoded links to 18f.gsa.gov pages #3860
    0 of 2
    workflow:blocked +1
24. Refactor all the files that contribute to config in .eleventy.js. Anything that can move into another file (e.g. config/collections.js) should.

[bpdesigns]

@beechnut please turn these tasks into individual tickets with acceptance criteria so we can prioritize these. Thank you!

[beechnut]

@bpdesigns I'm of the opinion that these shouldn't be addressed or prioritized until the migration is fully complete. Thoughts?

[bpdesigns]

makes sense to me. I'll add them to the icebox for now. Thanks!

[beechnut]

@amandacostello I moved this into "Candidates for prioritization" now that the replatforming is done.