Make hidden backend selector only visible after 9 taps

mobile/src/Auth/Login.js

@@ -81,6 +81,13 @@ export class Login extends React.Component {
       apiModal: null,
       waitModal: null,
     }
+    this.hiddenTouchCount = 0
+  }
+
+  componentWillUnmount() {
+    if (this.hiddenTouchTimer) {
+      clearTimeout(this.hiddenTouchTimer)
+    }
   }
 
   @autobind
@@ -121,7 +128,23 @@ export class Login extends React.Component {
 
   @autobind
   handleApiPress() {
+    this.hiddenTouchCount += 1
+
+    if (this.hiddenTouchCount == 9) {
+      this.hiddenTouchCount = 0
       this.setState({ apiModal: {} })
+      return
+    } else {
+      if (this.hiddenTouchTimer) {
+        clearTimeout(this.hiddenTouchTimer)
+        this.hiddenTouchTimer = null
+      }
+
+      this.hiddenTouchTimer = setTimeout(
+        () => (this.hiddenTouchCount = 0),
+        1000
+      )
+    }
   }
 
   render() {