Refactor LED strip configuration interface layout

- Separate LED control panels from display preview areas
- Add dedicated LED count control section at bottom of page
- Create new LedCountControlPanel component with 4-column grid layout
- Fix display container height to prevent layout overflow
- Remove embedded LED controls from DisplayView component
- Improve text color for display info panel title
- Hide spinner buttons on number inputs for cleaner UI
- Enhance input field styling with centered text and larger font

src/components/led-strip-configuration/display-view.tsx

@@ -6,6 +6,7 @@ import { DisplayInfoPanel } from './display-info-panel';
 import { LedStripPart } from './led-strip-part';
 import { ScreenView } from './screen-view';
 
+
 type DisplayViewProps = {
   display: DisplayInfo;
 };