Decrease target ios version

Appcircle.xcodeproj/project.pbxproj

@@ -442,7 +442,7 @@
 				CODE_SIGN_STYLE = Automatic;
 				DEVELOPMENT_TEAM = T9P2R7YH4K;
 				INFOPLIST_FILE = Appcircle/Info.plist;
-				IPHONEOS_DEPLOYMENT_TARGET = 12.2;
+				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
@@ -460,7 +460,7 @@
 				CODE_SIGN_STYLE = Automatic;
 				DEVELOPMENT_TEAM = T9P2R7YH4K;
 				INFOPLIST_FILE = Appcircle/Info.plist;
-				IPHONEOS_DEPLOYMENT_TARGET = 12.2;
+				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",

Appcircle/AppDelegate.h

@@ -10,6 +10,7 @@
 
 @interface AppDelegate : UIResponder <UIApplicationDelegate>
 
+@property (strong, nonatomic) UIWindow *window;
 
 @end