Remove -NoUi (#4572)

* Made -NoUi not exit the window

* Update start.ps1

* Update main.ps1

* Update main.ps1

* Update Set-WinUtilProgressbar.ps1

* Update Invoke-WPFImpex.ps1

* Update Invoke-WPFUIThread.ps1

* Update start.ps1

* Update Invoke-WPFUIThread.ps1

* Update main.ps1

* Update main.ps1

functions/public/Invoke-WPFUIThread.ps1

@@ -1,21 +1,3 @@
-function Invoke-WPFUIThread {
-    <#
-
-    .SYNOPSIS
-        Creates and runs a task on Winutil's WPF Forms thread.
-
-    .PARAMETER ScriptBlock
-        The scriptblock to invoke in the thread
-    #>
-
-    [CmdletBinding()]
-    Param (
-        $ScriptBlock
-    )
-
-    if ($PARAM_NOUI) {
-        return;
-    }
-
+function Invoke-WPFUIThread ($ScriptBlock) {
     $sync.form.Dispatcher.Invoke([action]$ScriptBlock)
 }