[gtksourceview] assistant: remove magic from GTK_POS_TOP alignment

[Christian Hergert <chergert src gnome org>]

commit 2c5cb576a1cf6f8574f236958660abaafba70b3a
Author: Christian Hergert <chergert redhat com>
Date:   Wed Aug 31 16:05:01 2022 -0700

    assistant: remove magic from GTK_POS_TOP alignment
    
    This is just a bit too obnoxious to manage alignment around, so instead
    just align based on the CSS bounding box and rely on CSS for situations
    where people want something different.

 gtksourceview/gtksourceassistant.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gtksourceview/gtksourceassistant.c b/gtksourceview/gtksourceassistant.c
index 4f5bd323..19157a2f 100644
--- a/gtksourceview/gtksourceassistant.c
+++ b/gtksourceview/gtksourceassistant.c
@@ -220,7 +220,7 @@ _gtk_source_assistant_real_get_offset (GtkSourceAssistant *assistant,
        }
        else
        {
-               *y = (margin.bottom / 3 * 2) - 1;
+               *y = margin.bottom - 1;
        }
 }