Added docker compatibility

dockerfile

@@ -0,0 +1,18 @@
+# Docker File for Open Ticket v4
+# Use the official Node.js 18 image from Docker Hub
+FROM node:18-alpine
+
+# Set a different working directory inside the container
+WORKDIR /usr/src/openticket
+
+# Copy package.json and package-lock.json into the container
+COPY package*.json ./
+
+# Install dependencies
+RUN npm install
+
+# Copy the rest of your app's source code into the container
+COPY . .
+
+# Run the bot from index.js
+CMD ["node", "index.js"]