added build script

build.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env sh
+
+set -e 
+
+# Build frontend
+yarn --cwd s3browser-frontend run build
+
+# copy fontend build to backend for embeding
+
+cp -r s3browser-frontend/build s3browser-backend/internal/static
+
+# Build backend
+cd s3browser-backend
+go build -o s3browser -tags prod ./cmd/s3Browser.go