Fix macOS build script

Forgot to update pathing in it and fixed issue if the app hadn't been made before

Author: Azyyyyyy

build-macos.sh

@@ -1,9 +1,9 @@
 dotnet publish src/MultiRPC/MultiRPC.csproj -c Release -r osx-x64
 dotnet publish src/MultiRPC/MultiRPC.csproj -c Release -r osx-arm64
 
-cp -r -v ./macOS\ Templates/MultiRPC.app/ macOS\ Templates/MultiRPC-x64.app/
-cp -r -v ./macOS\ Templates/MultiRPC.app/ macOS\ Templates/MultiRPC-arm64.app/
-mkdir macOS\ Templates/MultiRPC-x64.app/Contents/MacOS/
-mkdir macOS\ Templates/MultiRPC-arm64.app/Contents/MacOS/
-cp -r ./src/MultiRPC/bin/Release/net6.0/osx-x64/publish/* macOS\ Templates/MultiRPC-x64.app/Contents/MacOS/
-cp -r ./src/MultiRPC/bin/Release/net6.0/osx-arm64/publish/* macOS\ Templates/MultiRPC-arm64.app/Contents/MacOS/
+mkdir -p macOS-Templates/MultiRPC-x64.app/Contents/MacOS/
+mkdir -p macOS-Templates/MultiRPC-arm64.app/Contents/MacOS/
+cp -r -v ./macOS-Templates/MultiRPC.app/ macOS-Templates/MultiRPC-x64.app/
+cp -r -v ./macOS-Templates/MultiRPC.app/ macOS-Templates/MultiRPC-arm64.app/
+cp -r ./src/MultiRPC/bin/Release/net6.0/osx-x64/publish/* macOS-Templates/MultiRPC-x64.app/Contents/MacOS/
+cp -r ./src/MultiRPC/bin/Release/net6.0/osx-arm64/publish/* macOS-Templates/MultiRPC-arm64.app/Contents/MacOS/