Wrong position on multiple displays aligned vertically

**Describe the bug**

I have two displays. The primary is my laptop display and the secondary is located above the first one. When guake placement settings for "Appear on display" is "0 (primary)" or "always on primary", the guake window appears in the wrong position on the bottom of the secondary display. Also it happens when the option "Appear on mouse display" is checked and the mouse is on the primary display.

**Expected behavior**

The guake window should be placed on top of the primary display based on the settings.

**Actual behavior**

The window appears at the bottom of the secondary display.

**To Reproduce**

Probably the display arrangement I mentioned above.


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$ guake --support

Guake Version: 3.7.0

Vte Version: 0.62.0

Vte Runtime Version: 0.62.0

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GTK+ Version: 3.24.23

GDK Backend: GdkX11.X11Display

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Desktop Session: ubuntu

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Display: :0

RGBA visual: True

Composited: True

* Monitor: 0 - CMN eDP-1
* Geometry: 1920 x 1080 at 0, 1080
* Size: 309 x 173 mm²
* Primary: True
* Refresh rate: 60.01 Hz
* Subpixel layout: unknown
* Monitor: 1 - SAM DP-2
* Geometry: 1920 x 1080 at 0, 0
* Size: 477 x 268 mm²
* Primary: False
* Refresh rate: 60.00 Hz
* Subpixel layout: unknown