docs: create overview of repos and websites for all of seedcase

[K-Beicher]

Description

• This PR adds a PlantUML document detailing the repos and websites that we are currently working with.
• The overview is a first draft and would likely benefit from being incorporated into a text document, but we need to decide if this is the best way to display the most important information first.

Related Issues

Closes seedcase-project/community#12

Reviewer Focus

This PR requires an in-depth review.

We need to look at whether this is a useful direction to go in with regards to creating an overview of our project. Or if there is a better way to keep track of our repos and websites.

Repos are denoted with 'folders' websites as documents within. Diamonds indicate that there is no website associated with the repo.

Checklist

For general documentation:

• [x] Spell-check
  • [ ] US
  • [ ] UK
• [x] Did the page(s) preview correctly on your machine without breaking
• [x] New category words (keywords) (if any) added to the code snippet file

[signekb]

@K-Beicher as we talked about at the update meeting, I think the seedcase-theme repo is missing from the overview

[K-Beicher]

Thank you for the reminder @signekb. Theme has now been added, the whole thing now looks like this, I'm not happy with the arrow from About to About.

[lwjohnst86]

@K-Beicher If you can't finish this yet and want to come back to it, move it over to in progress. Best not to merge things that have requested changes unless there is a time critical reason ☺️