feat(oft-solana): throw specific error if trying to send more than owned

[nazreen]

Currently, if a dev tries to run the sendOFT.ts script with an amount greater than the balance of their deployer address, they will be faced with an error like so:

SendTransactionError: Simulation failed. 
Message: Transaction simulation failed: Error processing Instruction 2: custom program error: 0x1. 
Logs: 
[
  "Program ComputeBudget111111111111111111111111111111 success",
  "Program 13DZBdTFGrhYCcgKFx7ensYs1yBLgGwXdD7kzRA9tU2v invoke [1]",
  "Program log: Instruction: Send",
  "Program TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA invoke [2]",
  "Program log: Instruction: Burn",
  "Program log: Error: insufficient funds",
  "Program TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA consumed 4171 of 227697 compute units",
  "Program TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA failed: custom program error: 0x1",
  "Program 13DZBdTFGrhYCcgKFx7ensYs1yBLgGwXdD7kzRA9tU2v consumed 29174 of 252700 compute units",
  "Program 13DZBdTFGrhYCcgKFx7ensYs1yBLgGwXdD7kzRA9tU2v failed: custom program error: 0x1"
]. 

This is too cryptic. They will often resort to asking us for clarification. We can do better.

This PR removes this from ever being a blocker for self-service, by checking the balance of the deployer address and comparing it with the amount passed into the task.

Testing

init a repo with the example from this branch:

LAYERZERO_EXAMPLES_REPOSITORY_REF=#nazreen/oft-solana/throw-if-sending-more LZ_ENABLE_SOLANA_OFT_EXAMPLE=1 npx create-lz-oapp@latest

go through the usual steps until you reach the send step for Solana to Sepolia
then, input an amount greater than what was minted

you would get an error message like so:

Error: Attempting to send 10000000023456788, but <ADDRESS> only has balance of 9900000000

[ryandgoulding]

See #1230 PR into this branch