EXT-8322 FIXED Added second string for the Favorites folder with name="InvFolder favorite".

"Favorites" folder is created on first login for new account.
Historically it can have default name started from "f" or "F" on different accounts.

So, we have to localize both of them with the same value.

Reviewed by Loren Shih at https://codereview.productengine.com/secondlife/r/731/

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branch : product-engine