webkitgtk: Switch back debugging level to -g1

With flatpak-builders default `-g` flag, the extension's size is 4.5GB,
creating `.Debug` extensions for applications requires much more resources and time.
It also take extra 30min to build the extension on the CI.
Application maintainers might avoid the extension due to these.

Setting `-g1` reduce the extension's size to the much more reasonable value of ~1GB.

Anyone who needs full debug symbols for developing a wxWebView app can easily trigger a test build with the debug symbols.

org.freedesktop.Sdk.Extension.wxwidgets.yaml

@@ -48,10 +48,11 @@ modules:
       - name: webkitgtk
         # gnome sdk packaging https://gitlab.gnome.org/GNOME/gnome-build-meta/-/blob/master/elements/sdk/webkitgtk.{-4.0.bst,inc}
         buildsystem: cmake-ninja
-        # for faster local compilation, disable debug symbols with -g0
-        #build-options:
-        #  cflags: -g0
-        #  cxxflags: -g0
+        # faster compilation that avoids having the extension blow up to over 4GB
+        # for even faster local compilation, disable debug symbols with -g0
+        build-options:
+          cflags: -g1
+          cxxflags: -g1
         config-opts:
           - -DPORT=GTK
           - -DCMAKE_BUILD_TYPE=Release