docs(backends): include docs for inherited members

Author: deepyaman

docs/backends/_templates/api.qmd

@@ -11,7 +11,7 @@ backend = get_backend(module)
 print(f"## `{module}.Backend` {{ #{backend.canonical_path} }}")
 
 methods = sorted(
-    key for key, value in backend.members.items()
+    key for key, value in backend.all_members.items()
     if value.is_function
     if not value.name.startswith("_")
     if value.name != "do_connect"