Refactor FXIOS-10468 [SwiftLint] Fix force_unwrapping in /Widgets and /OpenInFocus (#29669)

* Refactor FXIOS-10468 [SwiftLint] Fix force_unwrapping in /Widgets

* Refactor FXIOS-10468 [SwiftLint] Fix force_unwrapping in /OpenInFocus

---------

Co-authored-by: Nicolas Combe <[email protected]>

Author: NicolasCombe5555

Dangerfile.swift

@@ -432,7 +432,7 @@ func checkDescriptionSection() {
 
 func commentDescriptionSection(desc: String) {
     let count = desc.trimmingCharacters(in: .whitespacesAndNewlines).count
-    if count == 0 {
+    if count == 0 { // swiftlint:disable:this empty_count
         fail("""
             Details needed! Your description section is empty. Adding a bit more context will make reviews smoother.
             """)

focus-ios/OpenInFocus/ActionViewController.swift

@@ -33,8 +33,11 @@ extension NSItemProvider {
     }
 }
 
-class ActionViewController: SLComposeServiceViewController {
-    private var isKlar: Bool { return (Bundle.main.infoDictionary!["CFBundleIdentifier"] as! String).contains("Klar") }
+final class ActionViewController: SLComposeServiceViewController {
+    private var isKlar: Bool {
+        guard let string = Bundle.main.infoDictionary?["CFBundleIdentifier"] as? String else { return false }
+        return string.contains("Klar")
+    }
     private var urlScheme: String { return isKlar ? "firefox-klar" : "firefox-focus" }
 
     override func isContentValid() -> Bool { return true }
@@ -97,21 +100,21 @@ class ActionViewController: SLComposeServiceViewController {
     }
 
     private func handleUrl(_ url: NSURL) {
-        // From http://stackoverflow.com/questions/24297273/openurl-not-work-in-action-extension
+        // From https://stackoverflow.com/questions/24297273/openurl-not-work-in-action-extension
         var responder = self as UIResponder?
         let selectorOpenURL = sel_registerName("openURL:")
-        while responder != nil {
+        while let currentResponder = responder {
             if #available(iOS 18.0, *) {
                 if let application = responder as? UIApplication {
                     application.open(url as URL, options: [:], completionHandler: nil)
                 }
             } else {
-                if responder!.responds(to: selectorOpenURL) {
-                    responder!.callSelector(selector: selectorOpenURL, object: url, delay: 0)
+                if currentResponder.responds(to: selectorOpenURL) {
+                    currentResponder.callSelector(selector: selectorOpenURL, object: url, delay: 0)
                 }
             }
 
-            responder = responder!.next
+            responder = currentResponder.next
         }
         finish()
     }

focus-ios/Widgets/Widgets.swift

@@ -63,7 +63,10 @@ struct FocusWidgets_Previews: PreviewProvider {
 
 fileprivate extension String {
     static var appNameForBundle: String {
-        var isKlar: Bool { return (Bundle.main.infoDictionary!["CFBundleIdentifier"] as! String).contains("Klar") }
+        var isKlar: Bool {
+            guard let string = Bundle.main.infoDictionary?["CFBundleIdentifier"] as? String else { return false }
+            return string.contains("Klar")
+        }
         return isKlar ? "Klar" : "Focus"
     }
     // Quick Action - Small Size - Gallery View
@@ -100,7 +103,7 @@ fileprivate extension Bool {
 }
 
 fileprivate extension URL {
-    static let deepLinkURL = URL(string: "firefox-focus://widget")!
+    static let deepLinkURL = URL(string: "firefox-focus://widget")
 }
 
 fileprivate extension View {