Fixes administratedFeeds of user and removes it from feedinfo
Replaces :userId to :username in feedinfo route
Adds PostView instead OwnPostView for group profile
Makes group list dynamic and adds link from subscribers to profile
Removes adminFeeds attribute
Replaces template's static text fields to locales strings
Renames validation to requireAuthorization in users and groups routes
Adds checking authorization for feed deletion
Adds refactoring to group model and users route
Adds group loading after signIn
Fixes displaying subscription before page refreshing
Divides subscribers to members and admins