akuligowski9/chiribudget

AI Summary: This issue addresses the lack of thousand separators in currency amounts displayed on the dashboard, making them difficult to read. The proposed solution is to replace existing `toFixed(X)` calls with `toLocaleString('en-US', { minimumFractionDigits: X, maximumFractionDigits: X })` across all relevant dashboard components, including summary cards, category breakdowns, and net by payer displays.