feat(device): Add 'Save to keyboard' button (#402)

* feat(device): Add 'Save to keyboard' button

Created a 'Progress Button' that have 2 state in progress or not.
Able to set different text for different state:
- baseText for normal state
- progressText for in progress state
close: #377

* fix 'Save to keyboard' button visibility in web version

* remove success notification when save to keyboard success

* feat(notifier): Turn off auto hide of the notifier

* feat(device): Show saved state of 'Save to keyboard button'

* style: Format import in app.component.ts

* feat(device): Auto hide 'Save to Keyboard' button

* fix(device): Fix saving animation

* fix(device): Fix saving animation

* fix(device): Fix tslint

packages/uhk-web/src/app/app.component.scss

@@ -37,3 +37,9 @@ main-app {
     display: block;
     position: relative;
 }
+
+.save-to-keyboard-button {
+    position: fixed;
+    bottom: 15px;
+    right: 15px;
+}