FEAT: added noselect modifier

instead of always manual setting no select stylings

src/modifier/Modifier.js

@@ -272,6 +272,17 @@ class Modifier {
         return this;
     }
 
+    /**
+     * Sets the style rules to deactivate text-selection in the component.
+     * @returns {Modifier}
+     */
+    noneSelect() {
+        return this
+            .setStyleRule("user-select", "none")
+            .setStyleRule("-ms-user-select", "none")
+            .setStyleRule("-webkit-user-select", "none")
+    }
+
     /**
      * 
      * @param {StylePropertyMap} rulemap