Google Chrome is only packaged for amd64 on Linux. To ensure consistent behavior across all platforms and support ARM64 systems (Apple Silicon, ARM servers), this PR switches to using Chromium by default on all architectures.

Changes

• Install chromium on all architectures (amd64, ARM64, etc.)
• Create /usr/local/bin/google-chrome symlink to maintain compatibility with applications expecting the google-chrome command
• Simplified Dockerfile by removing architecture detection logic

Implementation

# Install Chromium (works on all architectures)
RUN apt-get update && \
    apt-get install -y chromium && \
    ln -sf /usr/bin/chromium /usr/local/bin/google-chrome && \
    rm -rf /var/lib/apt/lists/*

Benefits

• Universal support: Works on all CPU architectures (amd64, ARM64, and others)
• Simpler code: Removed conditional architecture detection logic
• Faster builds: No need to add Google Chrome repository
• Consistent behavior: All platforms use the same browser (Chromium is functionally equivalent to Chrome)

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