[FEAT] Liquid staking pool creation flow

[yurixander]

The liquid staking pool creation process should be relatively simple and straightforward to implement:

• [ ] When the user clicks the Create pool button, a modal with the following options should display: name, amount, token, root address, nominator address, bouncer address, and commission.
• [ ] On the modal, when the user confirms the transaction, that should simply call the lst::create extrinsic in the case of Tangle mainnet/testnet/local dev.
• [ ] Since name and commission are set through independent extrinsics, the process can be simplified by batching the pool creation event with 3 extrinsics: 1. create the pool, 2. set the name, 3. set the commission. This would be done under the hood as an implementation detail.

CC @monaiuu