* feat(token_validation): Improve flow for adding new tokens across wallets
This change:
- Implements check to see if a token is already added, preventing duplicates
- Triggers dialog warning if its a duplicate token
- Takes EVM Chains contract adddress case-insensitivity when making checks for potential scams.
* refactor(token_validation): Modify token management flow
This change:
- Removes duplicate token check during token addition in EVMChainWalletBase.
- Introduces a flag to indicate if a token is being edited
- Adjusts token addition validation to bypass checks when editing an existing token.
* Update lib/src/screens/dashboard/edit_token_page.dart
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Co-authored-by: Omar Hatem <omarh.ismail1@gmail.com>
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