Add mobile keyboard API (#21)

* fix page for mobile - minor changes.

* fix textarea overlay to hide caret and avodi zooming on mobiles.

* fix typo.

* show keyboard btn if is touch device.

* lint fix.

* add to API.

* mobile keybaord fix andorid blur.

* add mobile keybaord toggle.

* fix overlay.

* mobile keybaord, skip if not a touch device.

src/page/components/events.vue

@@ -400,6 +400,18 @@
         <td>{{ neko.state.cursors }}</td>
       </tr>
 
+      <tr>
+        <th>mobile_keyboard_open</th>
+        <td>
+          <div class="space-between">
+            <span>{{ neko.state.mobile_keyboard_open }}</span>
+            <button @click="neko.mobileKeyboardToggle">
+              <i class="fas fa-toggle-on"></i>
+            </button>
+          </div>
+        </td>
+      </tr>
+
       <tr>
         <th>control actions</th>
         <td>