Resolve "Rate limit"

Summary

A Bottleneck class that forces requests to wait until their rate-limit capital replenishes.

Closes #95 (closed)

Changes

Inside Learning/

• feature: ✨ Bottleneck class for handling rate-limits
• fix: 🐛 Assume largest request cost
• fix: 🐛 Remove capital after request is sent
• perf: ⚡️ Batch all the HBO-i requests
• perf: ⚡️ Batch all the Review requests
• perf: ⚡️ Using slugCache with /user/self
• perf: ⚡️ Requesting all the outcomes simultaniously
• log-add: 🔊 Some coloring and capital logs

Inside Frontend/

• ui: 💄 Different chart options bar and line & colors

Inside Authentication/

• log-rm: 🔇 Context console.log

Before merge

• Changed code has been reviewed
• Tested to build, start and is usable