Fix windows build scripts

WinDockerfile

@@ -1,7 +1,7 @@
 FROM ghcr.io/beamable/ue4-full:5.3.2 as builder
 
 # use --build-arg BUILD_TYPE=-server in docker build to set it to be server build
-ARG BUILD_TYPE
+ARG BUILD_TYPE=" "
 ENV BUILD_ARG=${BUILD_TYPE}
 
 # by default it passes all maps, you can pass value `--build-arg MAP_ARG=-map=DefaultMap+BeamBackendTests` to override it
@@ -26,8 +26,7 @@ RUN C:\UnrealEngine\Engine\Build\BatchFiles\RunUAT.bat BuildCookRun -project=C:\
 -utf8output \
 -platform=Win64 \
 -clientconfig=%CLIENT_CONFIG% \
--serverconfig=%SERVER_CONFIG% \
- %BUILD_TYPE% \
+-serverconfig=%SERVER_CONFIG% %BUILD_ARG% \
 -noP4 -nodebuginfo %MAP_ARG% \
 -cook -build -stage -prereqs -pak -archive \
 -archivedirectory=C:\Project\PackagedProject

clean_project.bat

@@ -1,12 +1,9 @@
 @echo off
-echo *********************************************************************************************************************
-echo ******************************************** Clean Unreal Engine Project ********************************************
-echo *********************************************************************************************************************
+echo * Clean Unreal Engine Project *
 echo.
 echo Cleaning your project, please wait...
 FOR /d /r %%d IN ("Binaries","Build","Intermediate","Saved","DerivedDataCache") DO @IF EXIST "%%d" rd /s /q "%%d"
 del *.sln
 echo.
 echo Your project cleaned perfectly, you can generate Visual Studio project files now.
-pause
 :END

windows_build_project.ps1

@@ -1,9 +1,9 @@
 $buildType = $args[0]
 
 if ($buildType -eq 'server') {
-    docker build --build-arg BUILD_TYPE=server -t unreal-win64-project -f WinDockerfile .
+    docker build --build-arg BUILD_TYPE=-server -t unreal-win64-project -f WinDockerfile .
 } else {
-    docker build -t unreal-win64-project -f WinDockerfile --isolation=process .
+    docker build -t unreal-win64-project -f WinDockerfile .
 }
 docker run --name unreal-project -d unreal-win64-project
 docker cp unreal-project:C:\Project\PackagedProject .