missing 'many' plurals form for french language at Crowdin

[bekuno]

Issue as reminder to revert the lint rule for 'MissingQuantity' in build.gradle and lint.xml later.

Crowdin knows this issue, see https://community.crowdin.com/t/missing-many-plurals-for-french-language.

The state is:

We will update all languages where we missing new standards, like the “many” plural form. 
The appropriate epic task has been already created.

Still, it wouldn’t be released soon, because it requires additional investigation.

For example, some users already have French as 100% translated, and adding a new form means they 
will lose this progress. As a result, if their integration is based on the export option “export only 
fully translated file” it wouldn’t work until this new form becomes translated. For those who are fine 
with current forms, this change may quite uncomfortable.

Right now we’re discussing a solution that would work great for all our clients. 
You can sure that the languages will be definitely updated according to new standards.

Originally posted by @bekuno in #13634 (comment)

[bekuno]

Update from January:

I checked with the team, and the progress hasn’t been updated much since the last conversation with you.

We have received only a few requests about “many” forms (not only for French), and it seems like most of 
our customers still haven’t upgraded to the latest parsers/libraries. This means that this change will affect 
all customers and for many, the 3rd form can break everything in projects and translations.

For example, in the new .xcstrings format, we added two forms, and there were no complaints from customers.

We are currently discussing the option of adding custom languages to accommodate this new form, 
but I can’t say for sure whether this will be implemented or not.