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.

public/locales/zh/tools.json

@@ -92,7 +92,8 @@
   },
   "addWatermark": {
     "name": "添加水印",
-    "subtitle": "在您的 PDF 页面上添加文字或图片水印。"
+    "subtitle": "在您的 PDF 页面上添加文字或图片水印。",
+    "applyToAllPages": "应用到所有页面"
   },
   "headerFooter": {
     "name": "页眉和页脚",