Add peer info on P2Pool Status

[R27-pixel]

Changes:

• Added GET /peers support in p2pool_client.rs .
• Fetches peers when opening P2Pool Status and polls async results in app.rs.
• Renders connected peers in the Peers Info tab in p2pool_status_view.rs.
• Enabled left/right tab switching for P2Pool Status in main.rs .
• Updated the status bar and snapshot for the P2Pool tab UI.

[codecov]

Codecov Report

❌ Patch coverage is 75.28409% with 87 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
src/components/p2pool_status_view.rs	39.39%	40 Missing ⚠️
src/app.rs	46.55%	31 Missing ⚠️
src/main.rs	0.00%	13 Missing ⚠️
src/components/p2pool_client.rs	98.36%	3 Missing ⚠️

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