Native - show maturing and available balance for unstake

[donnyquixotic]

Describe the bug
For staking on the native side, we notify user in the form that deposits will be locked for 4 days but we display the full deposited amount in the unstake form regardless of whether the amount is available for withdraw ('matured'). This leads to confusion as users may attempt to withdraw receiving an 'insufficient available rex' error without explanation.

To Reproduce
Steps to reproduce the behavior:

1. Sign in on native for account with no amount staked (or full staked amount still 'maturing')
2. Stake if necessary
3. Navigate to 'unstake' tab
4. See full deposited amount
5. Attempt to unstake any portion of deposited amount
6. See error

Expected behavior

• Should display 'maturing' amount
• Should display 'matured'/'available' amount for unstaking (which is used to validate input)
• If no balance is available for withdraw, input and button should be disabled

Screenshots
Current:

Fix:

Additional Context

• You can view the maturing/available distinction in OBE by connecting wallet and viewing 'resources' under the 'wallet' tab