dockerfile bugs fixed

dockerfile

@@ -1,11 +1,14 @@
-# Use the official sharp base image, which has all dependencies pre-installed.
-# The 'sharp-node' images are maintained by the sharp library's author.
-FROM lovell/sharp-node:v0.32.0-node18-buster
+# Use the Node.js base image.
+FROM node:20-slim
 
-# Set the working directory inside the container.
+# Install system dependencies.
+# The --no-install-recommends flag prevents a lot of unnecessary packages from being installed, which can cause issues.
+RUN apt-get update && apt-get install -y --no-install-recommends libheif-dev libavif-dev libheif-examples
+
+# Set the working directory.
 WORKDIR /usr/src/app
 
-# Copy the dependency files first to leverage Docker's caching.
+# Copy the dependency files.
 COPY package*.json ./
 
 # Install Node.js dependencies.
@@ -17,5 +20,5 @@ COPY . .
 # Expose the port your app runs on.
 EXPOSE 3000
 
-# The command that starts your application.
+# Command to run the application.
 CMD [ "node", "server.js" ]