Crashes after another program registers the same hotkey

[RyanLua]

Description

When another program registers the default F6 hotkey, Fluent Auto Clicker will crash because it is not handled.

What was expected?

No crash to occur if another program uses a hotkey.

What actually happened?

A crash occurred.

Steps to reproduce

1. Open another program that uses the F6 hotkey like OP Auto Clicker
2. Open Fluent Auto Clicker
3. The app crashes immediately

Relevant log output

System.ComponentModel.Win32Exception
  HResult=0x80004005
  Message=Hot key is already registered.
  Source=Fluent Auto Clicker
  StackTrace:
   at FluentAutoClicker.MainPage.MainPage_Loaded(Object sender, RoutedEventArgs e) in C:\Users\ryanl\source\repos\FluentAutoClicker\FluentAutoClicker\MainPage.xaml.cs:line 42
   at WinRT._EventSource_global__Microsoft_UI_Xaml_RoutedEventHandler.EventState.<GetEventInvoke>b__1_0(Object sender, RoutedEventArgs e)
   at ABI.Microsoft.UI.Xaml.RoutedEventHandler.Do_Abi_Invoke(IntPtr thisPtr, IntPtr sender, IntPtr e)

Other details

No response

Code of Conduct

• I have read and agree to the project's Code of Conduct

[RyanLua]

Ideally we use a content dialog to just inform the user that the hotkey isn't available.