fix: add default value for checkbox in templateplaceholder & change tour message in self sign

apps/OpenSign/src/pages/SignyourselfPdf.js

@@ -805,7 +805,7 @@ function SignYourSelf() {
       selector: '[data-tut="reactourFirst"]',
       content: () => (
         <TourContentWithBtn
-          message={`Drag the signature or stamp placeholder onto the PDF to choose your desired signing location.`}
+          message={`Select and drag your preferred widgets onto the PDF to customize your document before signing. Choose the perfect spots for each modification to tailor the document to your needs.`}
           isChecked={handleDontShow}
         />
       ),

apps/OpenSign/src/pages/TemplatePlaceholder.js

@@ -1040,7 +1040,8 @@ const TemplatePlaceholder = () => {
                       minRequiredCount: minCount,
                       maxRequiredCount: maxCount
                     },
-                    isReadOnly: isReadOnly
+                    isReadOnly: isReadOnly,
+                    defaultValue: defaultValue
                   }
                 };
               }