chore: Update Dockerfile to build a smaller final image with Alpine L…

…inux and set GIN_MODE to release

backend/run_backend.sh

@@ -1,3 +1,16 @@
-#! /bin/bash
-docker build -t go-app .
-docker run -p 8080:8080 go-app
+#!/bin/bash
+
+# Name of your Docker application
+APP_NAME="go-app"
+
+# Stop the currently running container
+docker stop $APP_NAME
+
+# Remove the stopped container
+docker rm $APP_NAME
+
+# Build the new Docker image
+docker build -t $APP_NAME .
+
+# Run the new Docker container
+docker run -d --name $APP_NAME -p 8080:8080 $APP_NAME