Toggling between mini and maxi mode should use previous window position

[neilenns]

To reproduce:

1. Move the maxi mode window somewhere on your monitor
2. Toggle to mini mode
3. Move the mini mode window over to the right side of your monitor
4. Toggle to maxi mode

Result: The maxi mode window hangs off the edge of your screen Expected result: Maxi mode window is where it was before you toggled to mini mode

5. Toggle back to mini mode

Result: The mini mode window is where maxi mode used to be, instead of where it originally was moved in step 3 Expected result: Mini mode window is put where it was in step 3

This is what it looks like: