New fixes and removing warnings, and unused stuff.

API fixes:

• 👍| When API is not connected to Bot it does not return error message.
  • What did? -> I ended up putting the wrong field in the embed part.
  • What did you end up fixing? -> in the field was ff1212 which was supposed to be 0xff1212.
• I removed a number of unused things in the code to not make the code a bit polluted and less messy.
• Fixing and updating/adding stuff in Cargo.toml.