Add snooze support for calendar reminders (toast UI, service, DB) (#825)

* Filter reminder snooze options by default reminder

* Some updates.

* Fixing empty welcome page issue and attendee loading.

* Icon system for notifications and snooze options etc.

Wino.Core.Domain/Translations/en_US/resources.json

@@ -133,6 +133,14 @@
     "CalendarEventDetails_People": "People",
     "CalendarEventDetails_ReadOnlyEvent": "Read-only event",
     "CalendarEventDetails_Reminder": "Reminder",
+    "CalendarReminder_StartedHoursAgo": "Started {0} hours ago",
+    "CalendarReminder_StartedMinutesAgo": "Started {0} minutes ago",
+    "CalendarReminder_StartedNow": "Started just now",
+    "CalendarReminder_StartingNow": "Starting now",
+    "CalendarReminder_StartsInHours": "Starts in {0} hours",
+    "CalendarReminder_StartsInMinutes": "Starts in {0} minutes",
+    "CalendarReminder_SnoozeAction": "Snooze",
+    "CalendarReminder_SnoozeMinutesOption": "{0} minutes",
     "CalendarEventDetails_ShowAs": "Show as",
     "CalendarShowAs_Free": "Free",
     "CalendarShowAs_Tentative": "Tentative",
@@ -646,6 +654,8 @@
     "SettingsAvailableThemes_Title": "Available Themes",
     "SettingsCalendarSettings_Description": "Change first day of week, hour cell height and more...",
     "SettingsCalendarSettings_Title": "Calendar Settings",
+    "CalendarSettings_DefaultSnoozeDuration_Header": "Default snooze duration",
+    "CalendarSettings_DefaultSnoozeDuration_Description": "Set a default snooze duration for calendar reminder notifications.",
     "SettingsComposer_Title": "Composer",
     "SettingsComposerFont_Title": "Default Composer Font",
     "SettingsComposerFontFamily_Description": "Change the default font family and font size for composing mails.",