Localized strings do not have fallbacks

[tdulcet]

This library uses several localized strings to display messages to the user using the MessageHandler library. For example:

AutomaticSettings/internal/LoadAndSave.js

Line 323 in 4e6c058

() => CommonMessages.showSuccess("resettingOptionsWorked", true, {

However, it does not provide any fallbacks for extensions that are not (yet) localized, which causes the raw camel case message names to be shown instead:

While still readable, this obviously provides a very poor UX. This currently affects all six of my add-ons that are not yet localized. I would obviously love for all of them to be localized (PRs welcome), but that is of course an extremely time consuming and tedious process...

The fact that this library requires localization it also not documented on the README or in any of the documentation.