Reduce size of Khoj Docker images by removing layers and caches

- Align Dockerfile and prod.Dockerfile code
- Reduce Docker image size by 25% by reducing Docker layers and
  removing package caches

Dockerfile

@@ -3,19 +3,23 @@ FROM ubuntu:jammy
 LABEL homepage="https://khoj.dev"
 LABEL repository="https://github.com/khoj-ai/khoj"
 LABEL org.opencontainers.image.source="https://github.com/khoj-ai/khoj"
+LABEL org.opencontainers.image.description="Your second brain, containerized for personal, local deployment."
 
 # Install System Dependencies
-RUN apt update -y && apt -y install python3-pip swig curl
-
-# Install Node.js and Yarn
-RUN curl -sL https://deb.nodesource.com/setup_20.x | bash -
-RUN apt -y install nodejs
-RUN curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add -
-RUN echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.list
-RUN apt update && apt -y install yarn
-
-# Install RapidOCR dependencies
-RUN apt -y install libgl1 libgl1-mesa-glx libglib2.0-0
+RUN apt update -y && apt -y install \
+    python3-pip \
+    swig \
+    curl \
+    # Required by RapidOCR
+    libgl1 \
+    libglx-mesa0 \
+    libglib2.0-0 && \
+    # Required by Next.js Web app
+    curl -sL https://deb.nodesource.com/setup_20.x | bash - && \
+    curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add - && \
+    echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.list && \
+    apt update -y && apt -y --no-install-recommends install nodejs yarn && \
+    apt clean && rm -rf /var/lib/apt/lists/*
 
 # Install Application
 WORKDIR /app
@@ -33,7 +37,7 @@ ENV PYTHONPATH=/app/src:$PYTHONPATH
 
 # Go to the directory src/interface/web and export the built Next.js assets
 WORKDIR /app/src/interface/web
-RUN bash -c "yarn cache clean && yarn install --verbose && yarn ciexport"
+RUN bash -c "yarn install --frozen-lockfile --verbose && yarn ciexport && yarn cache clean"
 WORKDIR /app
 
 # Run the Application