Remove unused 'Front Flash' setting from UI

- Setting was defined but never used in camera logic
- Flash Mode and Flash Sync settings handle all flash functionality
- Keep property in SyncedSettings for backwards compatibility with saved data
- Remove from SettingsView, SettingsViewModel, and RingLightConfigurable protocol

SelfieCam/Features/Settings/SettingsView.swift

@@ -65,14 +65,6 @@ struct SettingsView: View {
                         accessibilityHint: String(localized: "Syncs flash color with ring light color")
                     )
 
-                    // Front Flash
-                    SettingsToggle(
-                        title: String(localized: "Front Flash"),
-                        subtitle: String(localized: "Hide preview during capture for flash effect"),
-                        isOn: $viewModel.isFrontFlashEnabled
-                    )
-                    .accessibilityHint(String(localized: "Uses screen flash when taking front camera photos"))
-
                     // HDR Mode
                     hdrModePicker
 

SelfieCam/Features/Settings/SettingsViewModel.swift

@@ -178,12 +178,6 @@ final class SettingsViewModel: RingLightConfigurable {
         }
     }
     
-    /// Whether front flash is enabled (hides preview during capture)
-    var isFrontFlashEnabled: Bool {
-        get { cloudSync.data.isFrontFlashEnabled }
-        set { updateSettings { $0.isFrontFlashEnabled = newValue } }
-    }
-    
     /// Whether the camera preview is flipped to show a true mirror (PREMIUM)
     var isMirrorFlipped: Bool {
         get { PremiumGate.get(cloudSync.data.isMirrorFlipped, default: false, isPremium: isPremiumUnlocked) }

SelfieCam/Shared/Protocols/RingLightConfigurable.swift

@@ -11,9 +11,6 @@ protocol RingLightConfigurable {
     /// The color of the ring light
     var lightColor: Color { get }
     
-    /// Whether front flash is enabled (hides preview during capture)
-    var isFrontFlashEnabled: Bool { get set }
-    
     /// Whether the camera preview is mirrored
     var isMirrorFlipped: Bool { get set }