added Preferences

-Adds preferences
-Adds credits to prefefrences
-Icon for preferences
-Share button for sharing to social media.
-Code cleanup
-Thanks @skittyblock!

Makefile

@@ -1,19 +1,18 @@
 ARCHS = arm64 arm64e
-SDK = iPhoneOS13.0
+SDK = iPhoneOS12.4
 FINALPACKAGE = 1
-export TARGET = iphone:clang:13.0:latest
 
 include $(THEOS)/makefiles/common.mk
 
 TWEAK_NAME = ZenithDark
 
 ZenithDark_FILES = Tweak.xm
-ZenithDark_CFLAGS = -fobjc-arc
 ZenithDark_FRAMEWORKS = UIKit CoreGraphics
 
 include $(THEOS_MAKE_PATH)/tweak.mk
 
-after-install::
-	install.exec "sbreload"
 SUBPROJECTS += zenithdarkprefs
 include $(THEOS_MAKE_PATH)/aggregate.mk
+
+after-install::
+	install.exec "sbreload"