Update Coin Page UI and add Buy/Sell actions

[Dianaaiym]

Update the Coin Page according to the new design and add direct swap actions.
https://www.figma.com/design/Jkio8Wg3J8lrBQH0cLsB8L/Unstoppable-Wallet-Layouts?node-id=992-50678&t=e3xIkV41t2ikWzHS-0

• Remove top tabs:

• Analytics

• Market

• Add buttons:

• Buy

• Sell

Buy behavior

• Open Swap screen
• Set:
  -Token Out → current coin
  -Token In → first token based on Popular Tokens logic

Sell behavior

• Open Swap screen
• Set:
  -Token In → current coin
  -Token Out → first token based on Popular Tokens logic