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-info-panel.tsx

@@ -24,7 +24,7 @@ export const DisplayInfoPanel: Component<DisplayInfoPanelProps> = (props) => {
     <div {...rootProps} class={'card bg-base-100/95 backdrop-blur shadow-lg border border-base-300 ' + rootProps.class}>
       <div class="card-body p-4">
         <div class="card-title text-sm mb-3 flex items-center justify-between">
-          <span>显示器信息</span>
+          <span class="text-base-content">显示器信息</span>
           {localProps.display.is_primary && (
             <div class="badge badge-primary badge-sm">主显示器</div>
           )}