feat: added flag emoji instead of country code in the popup view, and countryCode and flag options to the Text widget (#2916)

Kit/helpers.swift

@@ -1848,3 +1848,10 @@ public func isWidgetActive(_ defaults: UserDefaults?, _ widgets: [String]) -> Bo
     }
     return false
 }
+
+public func countryFlag(_ code: String) -> String? {
+    let uppercased = code.uppercased()
+    guard uppercased.count == 2 else { return nil }
+    let scalars = uppercased.unicodeScalars.compactMap { UnicodeScalar(127397 + $0.value) }
+    return scalars.count == 2 ? String(String.UnicodeScalarView(scalars)) : nil
+}