EPIC: UX v2

[jonathanpberger]

• [x] https://github.com/rollchains/spawn/issues/134
• [x] https://github.com/rollchains/spawn/issues/166
• [ ] https://github.com/rollchains/spawn/issues/123
• [x] https://github.com/rollchains/spawn/issues/160
• [x] https://github.com/rollchains/spawn/pull/176
• [x] https://github.com/rollchains/spawn/issues/155
• [x] https://github.com/rollchains/spawn/issues/167
• [x] https://github.com/rollchains/spawn/issues/174
• [x] https://github.com/rollchains/spawn/issues/202
• [x] https://github.com/rollchains/spawn/pull/214