This tweaks the script for collecting translation keys so that it
changes the existing file minimally, and matches the formatting
output by weblate.
I'm not sure what is the best way to handle keys that are no longer
needed. I think it may be best to delete these within weblate, but
will need to experiment to see (I'm a weblate newbie). I think I
saw keys reappear from weblate if not deleted there.
Summary:
Implement a checkbox that grants owners full access to tables by default, when creating new table/column rules.
* Checkbox appears above default rules.
* When set, a rule giving owners full access will be inserted in any new rule set started for tables or columns.
* The checkbox can be expanded to allow customization of the rules.
https://gristlabs.getgrist.com/doc/check-ins/p/3#a1.s7.r2251.c19
Test Plan: added tests
Reviewers: jarek
Reviewed By: jarek
Subscribers: anaisconce
Differential Revision: https://phab.getgrist.com/D3756
