Fix settings persistence and Swedish å character

- Fix inconsistent default values between init() and reloadSettings()
  in KeyboardViewModel (keyboardScale min was 0.3 vs 0.25)
- Add missing 0_0_up direction mapping in KeyboardLayout for Swedish å
- Swipe up on top-left key now correctly outputs å/Å in Swedish layout

Author: cl445

wurstfingerKeyboard/KeyboardLayout.swift

@@ -290,6 +290,7 @@ private extension KeyboardLayout {
                     center: centers[0][0],
                     locale: config.locale,
                     textMap: [
+                        .up: config.specialCharacters["0_0_up"] ?? "",
                         .right: "-",
                         .downRight: config.specialCharacters["0_0_downRight"] ?? "v",
                         .down: config.specialCharacters["0_0_down"] ?? "",
@@ -300,6 +301,7 @@ private extension KeyboardLayout {
                     ],
                     returnOverrides: [
                         .upLeft: .cycleAccents,
+                        .up: .text((config.specialCharacters["0_0_up"] ?? "").uppercased(with: config.locale)),
                         .right: .text("÷"),
                         .downRight: .text((config.specialCharacters["0_0_downRight"] ?? "v").uppercased(with: config.locale)),
                         .down: .text((config.specialCharacters["0_0_down"] ?? "").uppercased(with: config.locale)),

wurstfingerKeyboard/KeyboardViewModel.swift

@@ -246,19 +246,20 @@ final class KeyboardViewModel: ObservableObject {
             utilityColumnLeading = newUtilityValue
         }
 
-        let savedRatio = sharedDefaults.object(forKey: "keyAspectRatio") as? Double ?? 1.5
+        // Use same defaults as init() for consistency
+        let savedRatio = sharedDefaults.object(forKey: "keyAspectRatio") as? Double ?? DeviceLayoutUtils.defaultKeyAspectRatio
         let newAspectRatio = min(1.62, max(1.0, savedRatio))
         if keyAspectRatio != newAspectRatio {
             keyAspectRatio = newAspectRatio
         }
 
-        let savedScale = sharedDefaults.object(forKey: "keyboardScale") as? Double ?? 1.0
-        let newScale = min(1.0, max(0.3, savedScale))
+        let savedScale = sharedDefaults.object(forKey: "keyboardScale") as? Double ?? DeviceLayoutUtils.defaultKeyboardScale
+        let newScale = min(1.0, max(0.25, savedScale))
         if keyboardScale != newScale {
             keyboardScale = newScale
         }
 
-        let savedPosition = sharedDefaults.object(forKey: "keyboardHorizontalPosition") as? Double ?? 0.5
+        let savedPosition = sharedDefaults.object(forKey: "keyboardHorizontalPosition") as? Double ?? DeviceLayoutUtils.defaultKeyboardPosition
         let newPosition = min(1.0, max(0.0, savedPosition))
         if keyboardHorizontalPosition != newPosition {
             keyboardHorizontalPosition = newPosition