feat: enhance bottom controls and UI components

- Updated BottomControlsIsland for improved layout and styling.
- Refactored LayersSheet to enhance usability and visual consistency.
- Modified ToolOverlay for better tool selection experience.
- Improved BrushControls with new ColorPicker and Slider components.
- Enhanced PanControls and TransformControls for better user interaction.
- Updated ZoomControls for consistent button sizes and styles.
- Introduced new styles for bottom controls in styles.ts and index.css.
- Added BottomControlColorPicker, BottomControlSelectMenu, and BottomControlSlider components for better modularity and reusability.

view/index.css

@@ -15,3 +15,55 @@
     @apply m-0 min-w-[320px] bg-background text-foreground;
   }
 }
+
+@layer components {
+  .bottom-control-slider {
+    @apply h-8 cursor-pointer appearance-none bg-transparent outline-none;
+  }
+
+  .bottom-control-slider::-webkit-slider-runnable-track {
+    height: 0.25rem;
+    border-radius: 0;
+    background: linear-gradient(to right, rgb(255 255 255 / 0.9) var(--slider-progress), rgb(255 255 255 / 0.22) var(--slider-progress));
+  }
+
+  .bottom-control-slider::-webkit-slider-thumb {
+    width: 1.25rem;
+    height: 1.25rem;
+    margin-top: -0.5rem;
+    appearance: none;
+    border: 1px solid rgb(255 255 255 / 0.9);
+    border-radius: 9999px;
+    background: rgb(255 255 255);
+  }
+
+  .bottom-control-slider::-moz-range-track {
+    height: 0.25rem;
+    border-radius: 0;
+    background: rgb(255 255 255 / 0.22);
+  }
+
+  .bottom-control-slider::-moz-range-progress {
+    height: 0.25rem;
+    border-radius: 0;
+    background: rgb(255 255 255 / 0.9);
+  }
+
+  .bottom-control-slider::-moz-range-thumb {
+    width: 1.25rem;
+    height: 1.25rem;
+    border: 1px solid rgb(255 255 255 / 0.9);
+    border-radius: 9999px;
+    background: rgb(255 255 255);
+  }
+
+  .bottom-control-slider:focus-visible::-webkit-slider-thumb {
+    outline: 1px solid rgb(255 255 255);
+    outline-offset: 2px;
+  }
+
+  .bottom-control-slider:focus-visible::-moz-range-thumb {
+    outline: 1px solid rgb(255 255 255);
+    outline-offset: 2px;
+  }
+}