[docs] Add missing changes and links to Changelog

[Hundrec]

(fixes #3676) Oh whoops, was doing this at the same time as Eric

I've made a bunch of changes to the changelog that I think are necessary, so I'll be adding a commit to resolve merge conflicts with Eric's commit

All resolved!

Changes

• Add a few changes that are missing due to closed PRs
• Add PR links for new contributors in 0.5.2
• Add new contributors sections for 0.5.1, 0.5.0, 0.4.1, 0.4.0, and 0.3.3
• Add links to pull requests for all changes that came from a PR for all versions back to 0.3.3
• Tweak the spellings of some contributors' names to match their usernames on GitHub
• Various spelling and grammar fixes after 0.3.0
• Remove duplicate entries
• Fix a broken link in 0.4.1

And most of all...

• Change the 'h' in "2hot" to lowercase (and fixed M.I.L.F and DadBattle)

[EliteMasterEric]

This is great! I would like to see if this can get rebase/squashed to be compatible with the current main branch.

[JVNpixels]

whoops, forgot to add a period, thank you for adding it Hundrec!

[Hundrec]

I've included the latest changes from 0.5.3 and fixed up a few things:

• Removed a duplicate entry
• Reordered an enum fix for better readability
• Finished the final sentence (with what I think you meant to write)

I want to squash this into one commit, but I'm not sure how to. Can you guys do it?

[EliteMasterEric]

Let's see if this works

[Keoiki]

Well now the 0.5.3 changelog is inconsistent between Main and Develop branches since the final entry is completely different

[Hundrec]

Whoops! Didn't realize Eric finished his sentence in develop. I'll let Eric handle the conflict.