Tweak Smesher screen

[brusherru]

Rationale

The smesher screen shows some information, but it is not enough for the user to understand what is the current status.

Here are the user questions we want to answer:

1. I am Smeshing Correctly (eligible for reward)?
2. Am I getting rewards?
3. When is the next one?
4. What & When was my last reward?

The idea is to add such additional rows:

• Smeshing statistics
  Layer rewards: 127.56 SMH
  Fee rewards: 8.07 SMH
  Total rewards: 135.63 SMH
  Last earned: 09:52:20 AM + 0.0510 SMH [OPEN LOG]

• Currently Mining: EPOCH 22
  Layer rewards: 13.5 SMH
  Fee rewards: 1 SMH
  Total rewards: 14.5 SMH
  Estimated rewards: 3.46 SMH

• Coming up: EPOCH 23
  Status: WAITING FOR POET / ELIGIBLE / NOT ELIGIBLE
  Estimated Time: ~24.05.2022 11:44 AM (layer 4600)
  Estimated reward: 342.5 SMH

Since some API endpoints are missing we will not implement crossed-out rows.
Then we have everything on our hands to implement the rest.

Acceptance criteria

• Time estimation is calculated based on values from node-config (layer-duration-sec, layers-per-epoch, genesis-time)
• New fields are displayed
• Button "OPEN LOG" just opens the transaction log without any filtration
• Receiving the next reward should automatically rerender these rows

Out of scope

• Filtration of the transaction log is out of scope. See Tweak Transactions Log screen #911
• Missing APIs: Tweak SmesherService API go-spacemesh#3222