…och when account starts staking in middle of epoch

…stake amount, fix doubling totalSupply of epochs, add view to calculate MPs for externally any amount for any delta time

… generation

…tier

This commit updates the balanceOf function in the StakeManager contract. It now includes the calculation for the maximum MP that can be minted based on the account's balance and the time since the last mint. This ensures accurate balance calculation for the account.

…and remove restake ability

- Update imports to use the correct ERC20 interface
- Modify the `mint` and `deposit` functions to include an optional lock period
- Add a new `mint` function with a lock period parameter
- Add a new `deposit` function with a lock period parameter
- Modify the `redeem` and `withdraw` functions to include an authorization mechanism
- Modify the `redeem` and `withdraw` functions to use the `onlyVaultOwnerAuthorized` modifier
- Add a new `leave` function to allow the owner to leave all vaults
- Add a new `acceptMigration` function to accept migration for all vaults
- Update the `asset` function to use the `stakedToken` function from the stakeManager
- Update the `totalAssets` function to use the `totalSupplyBalance` function from the stakeManager
- Add new functions for previewing max deposit, max mint, max withdraw, and max redeem amounts
- Update the `_convertToShares` function to use the `totalSupply` and `totalSupplyBalance` functions from the stakeManager
- Update the `_convertToAssets` function to use the `totalSupplyBalance` and `totalSupply` functions from the stakeManager
- Remove the `transfer` and `allowance` functions as they are not needed