Don't include images/toolbarButton-editorInk.svg in the gulp components build (issue 15260)

Given that this image is intended specifically for the default viewer, we simply use the CSS preprocessor to remove the image reference in the `gulp components` build.
Considering that the issue only affects a CSS file, I don't believe that replacing the *just released* PDF.js version is actually necessary here.

web/annotation_editor_layer_builder.css

@@ -18,7 +18,11 @@
   --hover-outline: dashed 2px blue;
   --freetext-line-height: 1.35;
   --freetext-padding: 2px;
+  /*#if COMPONENTS*/
+  --editorInk-editing-cursor: pointer;
+  /*#else*/
   --editorInk-editing-cursor: url(images/toolbarButton-editorInk.svg) 0 16;
+  /*#endif*/
 }
 
 @media (forced-colors: active) {