LibGUI: Tweak FontPicker layout

Make everything a bit smaller and hide the horizontal scrollbars in the
list views since we don't really need them.

Libraries/LibGUI/FontPickerDialog.gml

@@ -25,6 +25,8 @@
         }
 
         @GUI::Widget {
+            fixed_width: 100
+
             layout: @GUI::VerticalBoxLayout {
             }
 
@@ -40,6 +42,8 @@
         }
 
         @GUI::Widget {
+            fixed_width: 80
+
             layout: @GUI::VerticalBoxLayout {
             }
 
@@ -60,7 +64,7 @@
         }
 
         title: "Sample text"
-        fixed_height: 100
+        fixed_height: 80
 
         @GUI::Label {
             name: "sample_text_label"