TimePicker: Style and responsive fixes, restored dashboard settings (#17822)

* TimePicker: Restore time picker settings

* CleanUp: removed unuused angular-ui (calendar) components

* Fix angular boot dependency list

* TimePicker: set time to 23:59:00 when setting To time using calendar

public/app/features/dashboard/components/DashboardSettings/index.ts

@@ -1,2 +1,3 @@
 export { SettingsCtrl } from './SettingsCtrl';
 export { DashboardSettings } from './DashboardSettings';
+export { TimePickerSettings } from './TimePickerSettings';