CEMU: added imgui dpendency in the manifest and removed from xwWidget's submodules

net.retrodeck.retrodeck.yml

@@ -179,6 +179,13 @@ modules:
         url: https://ftp.osuosl.org/pub/blfs/conglomeration/libgudev/libgudev-237.tar.xz
         sha256: 0d06b21170d20c93e4f0534dbb9b0a8b4f1119ffb00b4031aaeb5b9148b686aa
 
+  - name: imgui
+    buildsystem: meson
+    sources:
+    - type: git
+      url: https://github.com/ocornut/imgui.git
+      commit: 60bea052a92cbb4a93b221002fdf04f0da3698e1
+
   # ES-DE - START
   # https://gitlab.com/es-de/emulationstation-de
 
@@ -795,10 +802,6 @@ modules:
         dest: 3rdparty/rapidyaml/rapidyaml
         url: https://github.com/biojppm/rapidyaml.git
         commit: 213b201d264139cd1b887790197e08850af628e3
-      - type: git
-        dest: 3rdparty/imgui/imgui
-        url: https://github.com/ocornut/imgui.git
-        commit: 60bea052a92cbb4a93b221002fdf04f0da3698e1
       - type: git
         dest: 3rdparty/glslang/glslang
         url: https://github.com/KhronosGroup/glslang.git