better structure

config/quickshell/Constants/Fonts.qml

@@ -0,0 +1,16 @@
+import QtQuick
+import Quickshell
+import qs.Constants
+pragma Singleton
+
+Singleton {
+    id: root
+
+    readonly property string primary: "Sour Gummy Light"
+    readonly property string nerd: "Meslo LGM Nerd Font Mono"
+    readonly property string sans: "Noto Sans"
+    readonly property int small: Style.fontSizeS
+    readonly property int medium: Style.fontSizeM
+    readonly property int large: Style.fontSizeL
+    readonly property int icon: 14 // for nerd font
+}