Feat/master bot conf

[cardosofede]

• Add master conf page to introduce the credentials
• Refactored create bot and broker cards and integrate them to the selection of master bot conf

[fengtality]

LGTM!

I added 2 commits:

1. Revised copy, changed positioning of some elements
2. Set default sidebar collapsed mode

[fengtality]

@cardosofede approved - since i made some more changes, I'll let you merge this in or add more