improvement: increase maximum font size

Co-authored-by: xananax <me@xananax.com>

Author: NathanLovato

ui/components/popups/SettingsPopup.tscn

@@ -137,7 +137,7 @@ size_flags_horizontal = 3
 custom_styles/grabber_area_highlight = SubResource( 1 )
 custom_styles/grabber_area = SubResource( 2 )
 min_value = -2.0
-max_value = 2.0
+max_value = 7.0
 rounded = true
 tick_count = 3
 ticks_on_borders = true