[issues/1233]: Fixed bug preventing admin action
[issues/1233]: Fixed bug preventing admin action

A faulty import statement raised `AttributeError` in `taiga.projects.admin` when `anon_permissions` gets initialized during the execution of the `Make public`  admin action.

Additionally some style faults, such as, line breaks, white spaces and indents have been corrected.

taigaio/taiga-back,taigaio/taiga-back,taigaio/taiga-back