Remove unused imports and components.

components/CalendarWidget.tsx

@@ -82,10 +82,6 @@ export default function CalendarWidget({ events, types, onMonthChange, initialDa
                     const day = i + 1;
                     const event = getEventForDay(day);
 
-                    let bgClass = 'bg-transparent';
-                    let textClass = 'text-gray-700';
-                    let borderClass = 'border-transparent';
-
                     const bgColor = event?.timeOffRequestType?.color ? `${event.timeOffRequestType.color}25` : 'transparent';
                     const borderColor = event?.timeOffRequestType?.color || 'transparent';
                     const textColor = event ? event.timeOffRequestType?.color : '#374151';

components/MachineFilter.tsx

@@ -89,7 +89,7 @@ export default function MachineFilter({ selectedMachineId, onMachineSelect, text
                 )}
             </View>
 
-            {/* Nested Place Picker Modal */}
+            {/* Nested Machine Picker Modal */}
             <Modal visible={showPicker} transparent={true} animationType="fade" onRequestClose={() => setShowPicker(false)}>
                 <TouchableOpacity 
                     activeOpacity={1} 

components/SupplierFilter.tsx

@@ -96,7 +96,7 @@ export default function SupplierFilter({ selectedSupplierId, onSupplierSelect, t
                 )}
             </View>
 
-            {/* Nested Place Picker Modal */}
+            {/* Nested Supplier Picker Modal */}
             <Modal visible={showPicker} transparent={true} animationType="fade" onRequestClose={() => setShowPicker(false)}>
                 <TouchableOpacity 
                     activeOpacity={1}