Implemented "Quick SSH" dialog (#423)

* Simplifying view models, step 1: Extracting common terminal configuration into TerminalInfoViewModel.cs.

* Simplifying a bit.

* SSH view models simplfication.

* Refactoring duplicated code.

* Refactoring duplicated code.

* Renaming a resource file.

* Cleanup.

* Fixing an issue with TemplateSelectors.

* QuickSshDialog created.

* Minor fix.

* Wiring up QuickSshDialog.

* Minor fix.

* Fixed an issue with shared resources.

* Single-text-box dialog works.

* Improving "Quick SSH" look.

* Improving data validation workflow to avoid double validations.

* Refactoring view models and templates to avoid duplicated code.

* Minor fix.

* Fixing a bug with mosh.

* Cleanup.

* Cleanup.

* Moving profile view models in a separate folder (namespace).

* Few comment lines (short description) added to profile view models.

* Removing IDisposable from view-models because event-caused memory leaks will be solved differently.

* Implemented quick-ssh shortcuts.

* Fixing quick SSH command validation.

* Minor change.

* Minor change.

* Combining "SSH Info" and "Quick SSH" into a single dialog.

* Quick SSH profiles.

* Fixing a minor bug with custom links.

* Fixing remote profiles look and feel.

* Minor improvements.

* Fixing a minor bug.

* Minor changes based on Felix' comments.

* Saving executed commands history implemented.

FluentTerminal.App.ViewModels/MainViewModel.cs

@@ -21,7 +21,6 @@ namespace FluentTerminal.App.ViewModels
         private readonly IKeyboardCommandService _keyboardCommandService;
         private readonly ISettingsService _settingsService;
         private readonly ITrayProcessCommunicationService _trayProcessCommunicationService;
-        private readonly ISshHelperService _sshHelperService;
         private ApplicationSettings _applicationSettings;
         private string _background;
         private double _backgroundOpacity;
@@ -30,7 +29,7 @@ namespace FluentTerminal.App.ViewModels
         private string _windowTitle;
 
         public MainViewModel(ISettingsService settingsService, ITrayProcessCommunicationService trayProcessCommunicationService, IDialogService dialogService, IKeyboardCommandService keyboardCommandService,
-            IApplicationView applicationView, IDispatcherTimer dispatcherTimer, IClipboardService clipboardService, ISshHelperService sshHelperService)
+            IApplicationView applicationView, IDispatcherTimer dispatcherTimer, IClipboardService clipboardService)
         {
             _settingsService = settingsService;
             _settingsService.CurrentThemeChanged += OnCurrentThemeChanged;
@@ -46,7 +45,6 @@ namespace FluentTerminal.App.ViewModels
             ApplicationView = applicationView;
             _dispatcherTimer = dispatcherTimer;
             _clipboardService = clipboardService;
-            _sshHelperService = sshHelperService;
             _keyboardCommandService = keyboardCommandService;
             _keyboardCommandService.RegisterCommandHandler(nameof(Command.NewTab), async () => await AddLocalTabAsync());
             _keyboardCommandService.RegisterCommandHandler(nameof(Command.NewSshTab), async () => await AddSshTabAsync());
@@ -56,7 +54,7 @@ namespace FluentTerminal.App.ViewModels
             _keyboardCommandService.RegisterCommandHandler(nameof(Command.SavedSshNewTab), async () => await AddSavedSshTerminalAsync());
             _keyboardCommandService.RegisterCommandHandler(nameof(Command.SavedSshNewWindow), () => NewWindow(NewWindowAction.ShowSshProfileSelection));
             _keyboardCommandService.RegisterCommandHandler(nameof(Command.NewSshWindow), () => NewWindow(NewWindowAction.ShowSshInfoDialog));
-            
+
             // Add all of the commands for switching to a tab of a given ID, if there's one open there
             for (int i = 0; i < 9; i++)
             {
@@ -246,7 +244,7 @@ namespace FluentTerminal.App.ViewModels
 
         public async Task AddSshTabAsync()
         {
-            SshProfile profile = await _sshHelperService.GetSshProfileAsync(new SshProfile());
+            SshProfile profile = await _dialogService.ShowSshConnectionInfoDialogAsync();
             if (profile == null)
             {
                 // User selected "Cancel"
@@ -260,6 +258,7 @@ namespace FluentTerminal.App.ViewModels
                 await AddTerminalAsync(profile);
             }
         }
+
         public Task AddSshTabOrWindowAsync(Guid shellProfileId)
         {
             switch (_applicationSettings.NewTerminalLocation)
@@ -277,7 +276,7 @@ namespace FluentTerminal.App.ViewModels
 
         public async Task AddSavedSshTerminalAsync()
         {
-            ShellProfile profile = await _sshHelperService.GetSavedSshProfileAsync();
+            ShellProfile profile = await _dialogService.ShowSshProfileSelectionDialogAsync();
 
             if (profile == null)
             {