Take care of code-debt (part 1)

[PedroMiguelSS]

Description

Some compromises and shortcuts were made to speed up development to deliver on IPFS Camp. Though, it's time to improve on them.

This task holds several sub-tasks related to technical debt.

Sub-tasks

Front-end

• [ ] #256
• [ ] #259
• [ ] #226
• [ ] #196
• [ ] #217

Back-end

• [ ] #197
• [ ] #272
• [ ] #273