ActivityTab fails to load: undefined `error` var reference in JS catch statement about activity

[MP715]

Steps to reproduce

Open 'Info' sidebar in 'Memories' app while in a folder and select 'Activity' tab. Should likely be reproducable in other scenarios as well, see e.g. #1283 which looks very similar.

Expected behaviour

Should display the normal activity tab with a possibility to write a message and see the list of past activities.

Actual behaviour

Shows empty tab with just a text "Unable to load the activity list".

JS console shows an exception ActivityTab JS file at the following line.

Fix

The experession error.response !== undefined && error.response.status === 304 on that line should read e.response !== undefined && e.response.status === 304. I've verified that with this change the activity tab works fine.

How and where do I make this change?