You've configured your windows perfectly . Every palette and the time controls are exactly where you want them. The timeline has just enough room. Now save that window arrangement.
Choose Window>Workspace> Save Workspace.
Name the workspace and click OK.
It now appears at the top of your Workspace list.
After modifying a workspace, save it again with the identical name, and when prompted, choose Yes to overwrite the old workspace.
Workspaces are saved in, and become part of your user settings when you quit After Effects.
To delete a workspace choose Window>Workspace>Delete Workspace.