ui: update docs

Author: iinuwa

doc/xyz.iinuwa.credentialsd.UiControl.xml

@@ -37,7 +37,16 @@
   </interface>
   <interface name="org.freedesktop.impl.portal.experimental.Credential">
     <method name="Initialize">
-      <arg name="request" type="(uus(ssu)a(ss)s)" direction="in"/>
+      <arg name="parent_window" type="s" direction="in"/>
+      <arg name="origin" type="s" direction="in"/>
+      <arg name="type" type="u" direction="in"/>
+      <arg name="request_id" type="u" direction="in"/>
+      <arg name="devices" type="a(ss)" direction="in"/>
+      <arg name="app_id" type="s" direction="in"/>
+      <arg name="app_display_name" type="s" direction="in"/>
+      <arg name="app_pid" type="u" direction="in"/>
+      <arg name="app_path" type="s" direction="in"/>
+      <arg name="options" type="(ss)" direction="in"/>
       <arg type="o" direction="out"/>
     </method>
   </interface>