revert svelte-kit to vanilla svelte

[xnought]

Screen.Recording.2024-02-08.at.8.28.44.PM.mov

pull changes then do a hard restart with ./run.sh hard_restart

• Now the frontend is much faster and doesn't rely on svelte-kit code. Only vanilla svelte components
• Now the frontend imports https://github.com/xnought/venome-molstar directly (git submodule)
• Now all the routes are in the frontend/src/routes/ dir

closes #160

[ansengarvin]

I tried to load up the branch to test the PR, and I'm getting this error:

I'm not sure if it's something on my end or if it's the new submodule.