Add clear button for amount inputs

[defispartan]

Currently, it's quite tedious to input a custom amount after selecting the max button. You have to manually move the cursor to the end of the amount and backspace. It would be much nice to have a "clear" or "x" button to reset the amount to 0.

[iamanastasia]

Yeah, let's improve to classic interaction with x icon. But also would be great to see abbreviation of long numbers.

[MatthewCYLau]

👋 Hi there! New contributor here, and this ticket looks like a fantastic newbie ticket.

What is the user journey to render AssetInput? I'm keen to pick this one up.

Thanks! 🙏

[defispartan]

Hey! Yeah this would be a great first ticket, it's mostly css contained to one component

AssetInput is rendered inside of Modal components where the user is selecting an amount: supply, borrow, repay, withdraw

[MatthewCYLau]

👋 Raised a small PR - please let me know what you think 🙏