docs(): update modal and searchbar docs

* docs(input): fix typo

* docs(scroll): add note about required CSS for scrollY

* docs(config): add swipeBackEnabled to config properties list

* docs(component generator): fix broken link in template comment

* docs(directive generator): fix broken link in template comment

* docs(modal): add that modal is not reusable

* docs (searchbar): update description of debounce

src/components/modal/modal.ts

@@ -70,7 +70,8 @@ export class Modal extends ViewController {
  * After the modal has been presented, from within the component instance The
  * modal can later be closed or "dismissed" by using the ViewController's
  * `dismiss` method. Additionally, you can dismiss any overlay by using `pop`
- * on the root nav controller.
+ * on the root nav controller. Modals are not reusable. When a modal is dismissed
+ * it is destroyed.
  *
  * Data can be passed to a new modal through `Modal.create()` as the second
  * argument. The data can then be accessed from the opened page by injecting

src/components/searchbar/searchbar.ts

@@ -80,7 +80,7 @@ export class Searchbar extends Ion {
   @Input() showCancelButton: any = false;
 
   /**
-   * @input {number} How long, in milliseconds, to wait to trigger the `input` event after each keystroke. Default `250`.
+   * @input {number} How long, in milliseconds, to wait to trigger the `ionInput` event after each keystroke. Default `250`.
    */
   @Input()
   get debounce(): number {