cfilters/cli: -f "predef:..." needs cfilters loaded

Restore early loading of cfilters file removed in e0ddc7ad.

ui/qt/wireshark_application.cpp

@@ -1087,6 +1087,9 @@ _e_prefs *WiresharkApplication::readConfigurationFiles(bool reset)
     }
 #endif
 
+    /* Read the capture filter file. */
+    read_filter_list(CFILTER_LIST);
+
     return prefs_p;
 }