Fix localized path regression

[nirvn]

@suricactus , am I missing something completely obvious here or are we missing a setBadLayerHandler call since v0.26.0?

[suricactus]

@nirvn This should be handled by eaab36f#diff-09bee065a5c7767fb1960df829f4b0d812ede9b3f9299de26321eec6b42cb514R220

I did not check why not, I will be able to do so after 15th April.

I guess with the other crash-free fixes, we can check if libqfieldsync BadLayerHandler can work as it was initially planned to:
https://github.com/opengisch/libqfieldsync/blob/master/libqfieldsync/utils/bad_layer_handler.py#L55-L69

[nirvn]

@suricactus , that line will not attach the bad layer handler to the project though, code requires us to do it manually. That's why it's not working. I've tested it when adding a test case in libqfieldsync.