feat: add hover tooltips, global stats bar, enhanced row expansion, striped rows, and DataTable features

.cursor/goal/scratchpad.md

@@ -0,0 +1,28 @@
+---
+iteration: 1
+max_iterations: 10
+status: active
+goal: "Maximize the downloads widget by leveraging every mantine-datatable feature, adding hover tooltips with stats, click-to-expand rich detail rows, toggleable global stats, and comprehensive customization options"
+success_criteria:
+  - "Leverage all mantine-datatable features: row expansion, column toggling, custom row styling, striped rows, scroll area tracking, pinned columns, and context menus"
+  - "Add hover tooltips on rows showing additional stats (size, speed, ETA, ratio, category)"
+  - "Implement click-to-expand row details with comprehensive download info"
+  - "Add toggleable global stats bar showing total speeds, ratios, queue counts, and disk usage"
+  - "Use every relevant DataTable prop from the mantine-datatable docs"
+  - "Typecheck passes with pnpm turbo typecheck --filter=@homarr/widgets"
+  - "No regressions in existing functionality (context menu, sorting, filtering still work)"
+last_verdict: null
+last_reason: null
+last_next: null
+engine: cursor
+---
+
+## Progress log
+
+## Blockers
+
+## Verification
+
+## Task
+
+Maximize the downloads widget by leveraging every mantine-datatable feature, adding hover tooltips with stats, click-to-expand rich detail rows, toggleable global stats, and comprehensive customization options