Bitoin Improvement Iteration 1

[lumtis]

This EPIC lists issues for different improvement regarding Bitcoin reliability and usability

### Tasks
- [ ] https://github.com/zeta-chain/node/issues/2880
- [ ] https://github.com/zeta-chain/node/issues/2478
- [ ] https://github.com/zeta-chain/node/issues/2155
- [ ] https://github.com/zeta-chain/node/issues/2087
- [ ] https://github.com/zeta-chain/node/issues/2766
- [ ] https://github.com/zeta-chain/node/issues/2759