[FIX] web_editor: fix duplicated pasted image summernote

Issue

        - Windows > Chrome or Firefox
        - Any chatter > Open full screen
        - Paste any image

        The image is pasted twice

Cause

        Summernote adds the image but
        the browser event adds it too

Solution

	I applied the fix that summernote did
	summernote/summernote/commit/6e432941af17c5fee0877d9ff54b6ace65fbdb4b

OPW-2267712

closes odoo/odoo#52532

X-original-commit: 2b4b2ce8
Signed-off-by: Jason Van Malder (jvm) <jvm@odoo.com>

addons/web_editor/static/lib/summernote/src/js/module/Clipboard.js

@@ -27,6 +27,7 @@ define([
                 var item = list.head(clipboardData.items);
                 if (item.kind === 'file' && item.type.indexOf('image/') !== -1) {
                     handler.insertImages(layoutInfo, [item.getAsFile()]);
+                    event.preventDefault();
                 }
                 handler.invoke('editor.afterCommand', $editable);
             }