feat: unify CardHeader padding across components

- Updated `CardHeader` padding from `pb-3` to `pb-4` in `JiraLogs`, `JiraSync`, `KanbanColumn`, `ObjectivesBoard`, and `DesktopControls` for consistent spacing.
- Refactored `DesktopControls` and `KanbanFilters` to utilize new `ControlPanel`, `ControlSection`, and `ControlGroup` components, enhancing layout structure and maintainability.
- Replaced button elements with `ToggleButton` and `FilterChip` components in various filter sections for improved UI consistency and usability.

src/components/kanban/Column.tsx

@@ -38,7 +38,7 @@ export function KanbanColumn({ id, tasks, onCreateTask, onEditTask, compactView
           isOver ? 'ring-2 ring-[var(--primary)]/50 bg-[var(--card-hover)]' : ''
         }`}
       >
-        <CardHeader className="pb-3">
+        <CardHeader className="pb-4">
           <div className="flex items-center justify-between">
             <div className="flex items-center gap-3">
               <div className={`w-2 h-2 rounded-full ${style.accent.replace('text-', 'bg-')} animate-pulse`}></div>