disable keyboard auto-focus on iOS add sheets (closes 0xCUB3#249)

Author: 0xCUB3

wBlock/ContentView.swift

@@ -803,12 +803,14 @@ struct AddFilterListView: View {
 	            macosBody
 	        #endif
 	    }
+        #if os(macOS)
 	    .onAppear {
 	        urlFieldIsFocused = addMode == .url
 	    }
         .onChange(of: addMode) { _, newValue in
             urlFieldIsFocused = newValue == .url
         }
+        #endif
         .fileImporter(
             isPresented: $showingFileImporter,
             allowedContentTypes: [UTType.plainText, UTType.text],

wBlock/UserScriptManagerView.swift

@@ -958,12 +958,14 @@ struct AddUserScriptView: View {
             #endif
         }
         .interactiveDismissDisabled(isAdding)
+        #if os(macOS)
         .onAppear {
             urlFieldFocused = addMode == .url
         }
         .onChange(of: addMode) { _, newValue in
             urlFieldFocused = newValue == .url
         }
+        #endif
         .onChange(of: urlInput) { _, newValue in
             validateInput(newValue)
         }