Add comprehensive test suite, fix minor issues, rename function and file names to match approved verbs (#708)

Scripts/CLI/Show-CliAppRemoval.ps1

@@ -0,0 +1,29 @@
+# Shows the CLI app removal menu and prompts the user to select which apps to remove.
+function Show-CliAppRemoval {
+    Write-CliHeader "App Removal"
+
+    Write-Output "> Opening app selection form..."
+
+    $result = Show-AppSelectionWindow
+
+    if ($result -eq $true) {
+        Write-Output "You have selected $($script:SelectedApps.Count) apps for removal"
+        Add-Parameter 'RemoveApps'
+        Add-Parameter 'Apps' ($script:SelectedApps -join ',')
+
+        Save-Settings
+
+        # Suppress prompt if Silent parameter was passed
+        if (-not $Silent) {
+            Write-Output ""
+            Write-Output ""
+            Write-Output "Press enter to remove the selected apps or press CTRL+C to quit..."
+            Read-Host | Out-Null
+            Write-CliHeader "App Removal"
+        }
+    }
+    else {
+        Write-Host "Selection was cancelled, no apps have been removed" -ForegroundColor Red
+        Write-Output ""
+    }
+}