French translation for Activity Stream Gadget is incorrect

Issue Summary

This is reproducible on Data Center: Likely 

Steps to Reproduce

1. Send request to rest api with Jira language set to french `/rest/api/3/dashboards/{dashboardId}/gadget` for a dashboard with activity stream gadget
2. Sample result
   Unknown macro: {"gadgets"}

   ]} 

3.  Observe that "Flux d''activite" is incorrect translation and should have a single ' should read "Flux d'activite" 

Expected Results

French translation is "Flux d'activite" for title

Actual Results

Title is "Flux d''activite"

Workaround

There is no workaround