chore: go oss (#63) follow-up nits

This Pull request implements some tiny changes carried over from #63 and addresses some todo that are simple enough.

Implemented the submission visual cue on the word editor - this turns the submission loading button green after a word submission is successfully done before the redirection to he jargons editor dashboard
Added "babblebey" to funding/sponsor this project section
Extracted addToRecentSearches logic from search to word.astro layout - this ensures that words are added to recent searches when viewed and not only when they are searched using the search feature

jargonsdev / jargons.dev