fix(flatpak): add --device=dri for GPU/EGL access

Without /dev/dri the sandbox could not initialize EGL, causing MESA/ZINK
warnings on startup. Version stays at 1.0.5.

de.nerdbear.bearwave.json

@@ -7,6 +7,7 @@
     "command": "bearwave",
     "finish-args": [
         "--share=network",
+        "--device=dri",
         "--socket=wayland",
         "--socket=fallback-x11",
         "--socket=pulseaudio",

de.nerdbear.bearwave.metainfo.xml

@@ -67,6 +67,7 @@
           <li>Flatpak: KDE 6.10 runtime, signed repo updates, QML resource path fix</li>
           <li>About dialog shows version and git build id; removed “Public beta” label</li>
           <li>Fixed About, Add station, and Edit station dialogs not opening after QML refactor</li>
+          <li>Flatpak: grant GPU access via --device=dri (fixes EGL/MESA warnings)</li>
         </ul>
       </description>
     </release>