Use function-local cache

Ice/Utilities/ScreenCapture.swift

@@ -8,20 +8,23 @@ import ScreenCaptureKit
 
 /// A namespace for screen capture operations.
 enum ScreenCapture {
-    private static var lastCheckResult: Bool?
     static func cachedCheckPermissions(reset: Bool = false) -> Bool {
+        enum Context {
+            static var lastCheckResult: Bool?
+        }
+
         // Now that we can work without this permission, this call gets called way more often.
         // According to the energy meter, this has some minor impact on energy consumption
         // Let's cache the result until we are asked not to (e.g. the settings window is visible)
         if !reset {
-            if let lastCheckResultUnrawpped = lastCheckResult {
-                return lastCheckResultUnrawpped
+            if let lastCheckResult = Context.lastCheckResult {
+                return lastCheckResult
             }
         }
 
         let realResult = checkPermissions()
 
-        lastCheckResult = realResult
+        Context.lastCheckResult = realResult
 
         return realResult
     }