Refactor color input fields and enhance watermark functionality

- Updated color input fields in various HTML pages to remove unnecessary classes for improved styling consistency.
- Modified the watermark node to include options for positioning and flattening watermarks.
- Enhanced the addTextWatermark function to support customizable positioning and page selection for watermarks.
- Added new controls for text and image watermarks in the UI, allowing users to specify text, font size, color, opacity, angle, and image scaling.
- Updated the WASM provider to use the latest version of pymupdf-wasm.

src/js/const/cdn-version.ts

@@ -1,4 +1,4 @@
 export const PACKAGE_VERSIONS = {
   ghostscript: '0.1.1',
-  pymupdf: '0.11.14',
+  pymupdf: '0.11.16',
 } as const;