Match storage card font weight to light — consistent with stats strip

36pt semibold rounded → 36pt light monospacedDigit, matching
the thin numeral design language used across all widgets.

Co-Authored-By: Kutesir <kutesir@provoc.ug>
Co-Authored-By: Sentry <sentry@provoc.ug>

Features/Backup/BackupView.swift

@@ -998,8 +998,9 @@ struct BackupView: View {
     private func storageStat(_ value: String, label: String, color: Color) -> some View {
         VStack(spacing: 6) {
             Text(value)
-                .font(.system(size: 36, weight: .semibold, design: .rounded))
+                .font(.system(size: 36, weight: .light))
                 .foregroundStyle(color)
+                .monospacedDigit()
             Text(label)
                 .font(.system(size: 10, weight: .regular, design: .monospaced))
                 .foregroundStyle(AppTheme.inkQuaternary)