UI improvements (user feedback 2)

[tomjpandolfi]

Describe the features you'd love to see

• Show currency icon next to Supplied / Available amounts per market (Next to the number, show SOL icon or USDC icon)
• Show “cannot borrow more than what is available” , when people borrow too much from a pool.
• Show slider as red when someone is trying to borrow or withdraw more than what is available
• Fix deposits in USDC markets converting values into SOL (USDC <> USD)
• Change wording “Manage” → “Select” on the lend page
• Replace “Need crypto” by “How it works” (link to lend / borrow docs) and add to borrow page,
• Remove the word "wallet" from the app, use "connect" instead.