OpenGov delegation. Not easy to “unchange” when edit delegation

[pgolovkin]

For the 1st iteration of fix pre-fill the delegated amount and conviction as it was selected when delegated.

[pgolovkin]

Mockups link

1. For single shard account always show preselected value
2. For multisharshard account if all shards have same amount and conviction show preselected value else show 0 (as for start delegating)

[stepanLav]

Status verification: ❌

What has been verified:

• Pre-field state for single account ✅
• Pre-field state for multishard the same amount and locked period ✅
• Pre-field state for multishard differen amount, same lock period ✅
• Pre-field state for multishard differen amount and lock period ❌
• Pre-field state for multishard the same amount and different lock period ❌
  Edit delegation for multishard wallet. Unchange voting power trigger on wallets with different lock period. #3027

[stepanLav]

Find UI bug for selected tracks:

• Edit delegations. Lost track selection if close and reopen edit delegation page #3063

[stepanLav]

Status verification: ✅