Weblate: Improper access control for the translation memory in API
### Impact
The translation memory API exposed unintended endpoints, which in turn didn't do proper access control.
### Patches
*
https://github.com/WeblateOrg/weblate/pull/18513
### Workarounds
Blocking access to `/api/memory/` in the HTTP server removes access to this feature.
### References
This issue was reported by ggamno
https://hackerone.com/ggamno via HackerOne.