New Pokeball loader

[RiverMichael]

What this issue is about:

Change the loader to be a Pokeball

To-do's

• [x] Remove current loader
• [x] Implement Pokeball loader

Relevant project paths (optional)

src/scss/style.scss src/pages/index.astro src/pages/pokemon/index.astro

[RiverMichael]

Old loader	New loader