feat: Add set light client start block number

[yanguoyu]

1. Create a new wallet

creat-new-wallet.mov

2. Import wallet by mnemonic

import-words.mov

3. Import from Keystore

import_keystore.mov

4. Import Extended Public Key

import-pbkey.mov

5. Import Hardware Wallet

import-hardwallet.mov

[Danie0918]

@Keith-CY @homura @WhiteMinds @devchenyan Please review.

[yanguoyu]

/package
Packaging for test is done in 5747138483. @yanguoyu

[silySuper]

1.When I click clear light client all data，the block number which is set before will be saved.How can I clear the set block number?

2023-08-03.16.07.38.mov

2.【Import wallet by mnemonic】Set start block number can only operate one time？Second set can not affect，if it can set only once，maybe the button set gray and can not operate after first set.

2023-08-03.16.33.20.mov

3.Does the start block number of one neuron can affect another neuron？

2023-08-03.16.55.02.mov

@Danie0918 @yanguoyu

[yanguoyu]

1.When I click clear light client all data，the block number which is set before will be saved.How can I clear the set block number?

There is no way to reset the start block number, IMO set the start block number to 0 is the same as reset.

2.【Import wallet by mnemonic】Set start block number can only operate one time？Second set can not affect，if it can set only once，maybe the button set gray and can not operate after first set.

From the video, I see the second setting is success. The light client starts the sync from 650,000. What problem with that?

Does the start block number of one neuron can affect another neuron？

I don't get the point. Every wallet's sync block number is separate. And the start block number is also set for one wallet.

[silySuper]

2.When I set 650000,it changes 610000->621000->650000.In expect ,after I set the start block number,it changes 610000->650000.
3.
The situation:

When I switch in these four neuron, in expect their change is

but actually their change are these:firstly show another neuron start block number ,then change to 0->their self start block number.

2023-08-04.13.12.51.mov

[yanguoyu]

but actually their change are these:firstly show another neuron start block number ,then change to 0->their self start block number.

The start block number is used to set the light client start block, but if your wallet has synced to bigger than the start block number, the start block number is invalid.

[yanguoyu]

And after setting the start block number, it will cost a few seconds to change the synced block number. So you need to wait for a while then the synced block number will change. @silySuper

[silySuper]

👌