add buid script

Author: newpanjing

build_macOS.sh

@@ -1,3 +1,2 @@
 #!/usr/bin/env bash
-flutter build macos --release --no-sound-null-safety
-flutter build web --release --web-renderer html --no-sound-null-safety
+flutter build macos --release --no-sound-null-safety

build_web.sh

@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+mkdir -p dist
+rm -rf dist/*
+flutter build web --release --web-renderer html --no-sound-null-safety
+cp -r ./build/web/* ./dist/
+git add dist/
+git commit -m "Update dist"
+git push