Add dependency on keyboard_visiblity

pubspec.lock

@@ -707,6 +707,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "4.7.0"
+  keyboard_visibility:
+    dependency: "direct main"
+    description:
+      name: keyboard_visibility
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.5.6"
   like_button:
     dependency: "direct main"
     description:

pubspec.yaml

@@ -72,6 +72,7 @@ dependencies:
   implicitly_animated_reorderable_list: ^0.4.0
   in_app_purchase: ^3.0.7
   intl: ^0.17.0
+  keyboard_visibility: ^0.5.6
   like_button: ^2.0.2
   loading_animations: ^2.1.0
   local_auth: ^1.1.5