Fix remaining Debian Trixie package issues

- Replace libgdk-pixbuf2.0-0 with libgdk-pixbuf-xlib-2.0-0
- Remove libgconf-2-4 (not available in Trixie)
- Add comprehensive X11 and font libraries for OpenCV
- Ensure all packages are available in Debian Trixie

Dockerfile

@@ -10,15 +10,27 @@ RUN apt-get update && apt-get install -y \
     libgomp1 \
     libgthread-2.0-0 \
     libgtk-3-0 \
-    libgdk-pixbuf2.0-0 \
+    libgdk-pixbuf-xlib-2.0-0 \
     libxss1 \
-    libgconf-2-4 \
     libnss3 \
     libxrandr2 \
     libasound2 \
     libpangocairo-1.0-0 \
     libatk1.0-0 \
     libcairo-gobject2 \
+    libfontconfig1 \
+    libx11-6 \
+    libx11-xcb1 \
+    libxcb1 \
+    libxcomposite1 \
+    libxcursor1 \
+    libxdamage1 \
+    libxfixes3 \
+    libxi6 \
+    libxrandr2 \
+    libxrender1 \
+    libxss1 \
+    libxtst6 \
     && rm -rf /var/lib/apt/lists/*
 
 # Set up a new user named "user" with user ID 1000