Maybe at the top or maybe add a "Settings" page for this kind of thing. Toggling the totals off will hide the "Total: __" section for the player and dealer. Default it to off and let players turn it on if they want to physically see the totals instead of just seeing the cards.

Show the number of wins/losses on the page and also add a Clear Stats button to delete those statistics from localstorage.

In the Welcome component, the Deal button will initially be disabled. There will be 4 bet options on the Welcome menu - $100, $250, $500, $1000. The player must select one of these options and then the Deal button will become enabled. The bet will be stored in state along with the player's bank.

The bank will initially be 10,000 and will be stored in localStorage. If the player wins, they will gain the amount they bet, otherwise they lose that amount and both state and localStorage will be updated accordingly. When the player comes back, the bank should load from localStorage first and if localStorage doesn't exist it will set to 10,000.

The player can continue to play even if their bank goes into the negative. The game will continue to keep track of their negative balance.