Revert "Correct typo in french translation (missing 's')"
Revert "Correct typo in french translation (missing 's')"

This reverts commit 4beabd52922a1e4769be58c8c7a01bf009b687a4.

This PR should not be merged directly in beta!
See https://github.com/marienfressinaud/FreshRSS/pull/572

romibi/FreshRSS,FreshRSS/FreshRSS,marienfressinaud/FreshRSS,Dolomich/FreshRSS,asmundg/FreshRSS,superboum/FreshRSS,marienfressinaud/FreshRSS,Dolomich/FreshRSS,aledeg/FreshRSS,Alkarex/FreshRSS,FreshRSS/FreshRSS,FreshRSS/FreshRSS,romibi/FreshRSS,marienfressinaud/FreshRSS,superboum/FreshRSS,romibi/FreshRSS,aledeg/FreshRSS,aledeg/FreshRSS,superboum/FreshRSS,Alkarex/FreshRSS,asmundg/FreshRSS,samuelstein/FreshRSS,samuelstein/FreshRSS,FreshRSS/FreshRSS,romibi/FreshRSS,samuelstein/FreshRSS,aledeg/FreshRSS,Alkarex/FreshRSS,Alkarex/FreshRSS,asmundg/FreshRSS,marienfressinaud/FreshRSS,Dolomich/FreshRSS