Enhancement of the webui preference and of the quote escape for javascript

src/webui/abstractwebapplication.cpp

@@ -270,6 +270,10 @@ void AbstractWebApplication::translateDocument(QString& data)
             // Remove keyboard shortcuts
             translation.replace(mnemonic, "");
 
+            // Use HTML code for quotes to prevent issues with JS
+            translation.replace("'", "'");
+            translation.replace("\"", """);
+
             data.replace(i, regex.matchedLength(), translation);
             i += translation.length();
         }