[gnome-builder] libide/editor: compress minimap a bit

[Christian Hergert <chergert src gnome org>]

commit fe0ddb0823e57fadc436f5f7fcd53b3da9b02fd3
Author: Christian Hergert <chergert redhat com>
Date:   Sat Oct 1 16:56:35 2022 -0700

    libide/editor: compress minimap a bit
    
    We don't need to follow Text Editor in sizes here, as Text Editor is more
    of a generic editor. We expect people writing code here, and a bit more
    space has a very practical benefit.
    
    I would expect a slight slowdown in text rendering performance, given that
    this will require snapshotting more lines (and snapshotting lines in GSV
    requires potentially updating the highlight for that region).
    
    3px suggested by @exalm.

 src/libide/editor/style.css | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/libide/editor/style.css b/src/libide/editor/style.css
index 9be2a45e5..193ea64c9 100644
--- a/src/libide/editor/style.css
+++ b/src/libide/editor/style.css
@@ -1,7 +1,7 @@
 textview.GtkSourceMap {
   font-family: BuilderBlocks;
   font-size: 1.75pt;
-  line-height: 5px;
+  line-height: 3px;
   color: alpha(currentColor, 0.75);
 }
 textview.GtkSourceMap:dir(ltr) {