optimize: copy source code in Dockerfile

Signed-off-by: K8sCat <k8scat@gmail.com>

.dockerignore

@@ -0,0 +1,6 @@
+docker-compose/
+.github/
+.gitignore
+start.bat
+Dockerfile
+.dockerignore

Dockerfile

@@ -4,8 +4,8 @@ FROM node:19
 # Set the working directory
 WORKDIR /app
 
-# Clone the project repository
-RUN git clone https://github.com/PawanOsman/ChatGPT.git /app
+# Copy source code
+COPY . .
 
 # Install dependencies
 RUN npm install