Fix Dockerfile to use Node 18 and improve build process

Dockerfile

@@ -1,23 +1,20 @@
 FROM node:18-alpine as builder
 
+# Install git and other dependencies
+RUN apk add --no-cache git
+
+# Clone the repository
+RUN git clone --depth 1 https://git.nixc.us/Nixius/hastebin.git /app
+
 WORKDIR /app
 
-# Copy package files first for better caching
+# Clean npm cache and install dependencies with better error handling
-COPY package*.json ./
-
-# Clean npm cache and install dependencies with specific flags to avoid errors
 RUN npm cache clean --force && \
     npm install --production --no-optional && \
-    npm install mocha
+    chmod +x app.sh
 
-# Copy the rest of the application
+# Build assets if needed
-COPY . .
+RUN node update-js.js || echo "No update-js.js script found"
-
-# Make sure app.sh is executable
-RUN chmod +x app.sh
-
-# Build assets
-RUN node update-js.js
 
 FROM node:18-alpine
 
@@ -26,10 +23,14 @@ WORKDIR /app
 # Copy from builder stage
 COPY --from=builder /app .
 
+# Install mocha in the final image
+RUN npm install mocha
+
 # Set environment variables
 ENV NODE_ENV=production \
     HASTEBIN_ENABLE_CSP=true \
-    HASTEBIN_ENABLE_HSTS=true
+    HASTEBIN_ENABLE_HSTS=true \
+    HASTEBIN_ENABLE_CROSS_ORIGIN_ISOLATION=true
 
 # Expose port
 EXPOSE 7777