Add-ons [OzzModz] User Fake Activity 2.0.3

• Code refactor & cleanup
• Fixed "max(): Array must contain at least one element" error in public page view fake activity handler (if no existing user meets the trigger conditions)
• Added new fake activity: user reactions for new content (requires enabled news feed)
• More informative online threshold option explain
• Added separate ACP admin permission to manage fake activity ("manage users" permission was previously checked)
• Added trigger test run button & elapsed time information
• Added CLI command to disable triggers:

php cmd.php xf-rebuild:ozzmodz-ufa-trigger-disable