Templating

[BenjaRogers]

Add templates from frontend repo and basic routes for them. Probably worth adding a base template for navbar/footer.

[FFY00]

This is good, thank you!

I think the main thing we can improve here is using Jinja's template inheritance, so that we don't need to repeat the header, navbar, footer, etc. everywhere. See, https://jinja.palletsprojects.com/en/3.1.x/templates/#template-inheritance

Other than that, I think the contents of style.css should probably be moved to style.scss. I see this PR just copies how it was done in the front-end repo, @redstarblanket is there any specific reason for this?

Also, for future reference, when building on other's work, there's a tag we can use to document that! You just need to add the Co-authored-by tag to the commit body, which can also be repeated if there's more than one other people. I can do this when I merge this PR, if I select the "squash and merge" option, so don't worry about it for this PR.

Co-authored-by: Em <75779842+redstarblanket@users.noreply.github.com>

(email taken from https://github.com/peepo-world/frontend/commit/5718097a65cefa305a33a4ff5282357ef329457a.patch)
You can find more at https://docs.github.com/en/pull-requests/committing-changes-to-your-project/creating-and-editing-commits/creating-a-commit-with-multiple-authors.

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Not related to this PR, but I just wanted to note here for the future. We should probably add a Jinja+HTML formatter, like https://www.djlint.com/, to pre-commit.

We should also have a "playground", essentially a simple webserver that just renders the templates with dummy data, allowing people to work on the front-end without having to setup the whole project (database, object storage server, etc.).

[FFY00]

Nothing for you to do here, but I just wanted to note that I plan to change this to use git submodules node, like in https://github.com/FFY00/ffy00.github.io/.