script: separate moonraker removal with whiptail

scripts/ui/remove_moonraker_yesno.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+remove_moonraker_yesno(){
+	  whiptail --title "Remove" \
+    --yesno \
+    "Do you want to remove Moonraker afterwards?
+
+    This is useful in case you want to switch from a single-instance to a multi-instance installation, which makes a re-installation of Moonraker necessary.
+
+    If for any other reason you only want to uninstall Klipper, please select 'No' and continue." \
+    "$KIAUH_WHIPTAIL_NORMAL_HEIGHT" "$KIAUH_WHIPTAIL_NORMAL_WIDTH"
+
+  local out=$?
+  if [ $out -eq 0 ]; then
+    REM_MR="true"
+  else
+    REM_MR="false"
+}