Feature/deposit yfd

[Tgrede]

• added .js extension to config.override for webpack to work with chakra
• added chakra-ui library
• added saas-ui library (built on top of chakra)
• added react-currency-input-field (for positive integer only input field being used for yfd deposit amount)
• recreated headerbar based on chakra components
• this included rebuilding the wallet connect button (because the old one used MUI which can't be used with chakra)
• removed old style component code so everything being rendered is using chakra ui components now.
• created an InputCurrency component that uses the react-currency-input-field
• added relevant hooks and utility files to execute staking of yfd
• this includes querying for balances of both YFD and fYFD
• and resetting those balances to 0 on wallet disconnect
• and updating those balances when a tx is made
• and a toast notification with a link to terra finder to the tx

Things this update does not include that still need to be handled ASAP:

• proper error handling and testing of edge cases (normal user flow works fine)
• display balance of tokens in the wallet connect drop down when wallet is connected.