Added steam distrobox

Author: shubms

distroboxes/steam/Containerfile

@@ -0,0 +1,18 @@
+FROM ghcr.io/ublue-os/arch-distrobox:latest
+
+LABEL com.github.containers.toolbox="true" \
+    name="steam-container"
+
+RUN pacman -Syu --noconfirm \
+    glibc-locales \
+    lib32-vulkan-mesa-layers \
+    lib32-vulkan-radeon \
+    lib32-mangohud \
+    pipewire-alsa \
+    pipewire-pulse \
+    steam \
+    ttf-liberation \
+    xdg-desktop-portal-gnome && \
+    pacman -Sc --noconfirm
+
+VOLUME /steam /var/home