Remove change in main.m and change submodule

- Remove changes in main.m, turns out we cannot actually catch it here.
Tried some other methods, however none worked.
- Change dupeguru submodule to a more "known" commit that did not have
partial work in it.

NOTE: Issue with picture mode appears to be from python 3.8+ changing to use
`spawn` as the method for multiprocessing.  While this is most likely better
we currently have issues when application is run normally (running from
run.py does not have issues). I am manually going to change to `fork`
instead since other methods did not work. This needs to be done on line
20 of matchblock.py.  Either need to
find a workaround or make a way to detect we are running with cocoa vs.
qt to make this switch.  Just on macos
would affect qt build which does not
need this change.

cocoa/main.m

@@ -24,17 +24,9 @@ int main(int argc, char *argv[])
     Py_SetPythonHome(wPythonPath);
     Py_Initialize();
     PyGILState_STATE gilState = PyGILState_Ensure();
-    /* This main gets called when multiprocessing spawns new threads.  To
-       prevent this from opening more windows and not working correctly we
-       are just checking main here and not running the file.  Should be able
-       to block on the python side of things but checking
-       __name__ == "__main__" did not seem to work in the one location I tried.
-     */
-    if ([NSThread isMainThread]) {
-        FILE* fp = fopen([mainpy UTF8String], "r");
-        PyRun_SimpleFile(fp, [mainpy UTF8String]);
-        fclose(fp);
-    }
+    FILE* fp = fopen([mainpy UTF8String], "r");
+    PyRun_SimpleFile(fp, [mainpy UTF8String]);
+    fclose(fp);
     PyGILState_Release(gilState);
     if (gilState == PyGILState_LOCKED) {
         PyThreadState_Swap(NULL);