fix: use chain not supported component rfox unstake and change address

[NeOMakinG]

Description

We would like to make it clearer for our user than they can't use the unstake, change address components if they are using a wallet not supporting Arbitrum

To achieve this, I exported the <ChainNotSupported /> component to the Shared folder and reused it in each rFOX features

Issue (if applicable)

Follow up of #7569

Risk

Low

High Risk PRs Require 2 approvals

What protocols, transaction types, wallets or contract interactions might be affected by this PR?

Testing

• Use an account without the Arbitrum chain
• Go to rFOX
• Try to click on Claim, unstake and change address, you should see the Chain not supported component

Engineering

n/a

Operations

n/a

• 🏁 My feature is behind a flag and doesn't require operations testing (yet)

Screenshots (if applicable)

[0xApotheosis]

Does what it says on the box!

The <ChainNotSupported /> does not show when an Arbitrum account is connected, and...

Unstake without Arbitrum account:

Claim without Arbitrum account:

Change address without arbitrum account:

Noting that the <ChainNotSupported /> is not shown from the stake tab when we do not have an Arbitrum account connected, though from the diff it appears this is expected: