Restore full MM config with all tokens and chains

Description:
when restoring wallet from seed phrase only ETH base config is restored. So user has to manually add all tokens and chains and sub wallets which can take a long time and risk of forgetting about some tokens

Purpose:
to automatically restore all tokens and chains to a saved MM configuration, instead of just restoring the basic MM config.

Extension/Mobile/Both:
Both

Images/Attacments:
none