fix: Use Umbrella Imports (#23)

* fix: Use Umbrella Imports

* ensure functionality on SPM and cocaopods

Author: BrandonStalnaker

mParticle-Google-Analytics-Firebase-GA4/MPKitFirebaseGA4Analytics.h

@@ -1,10 +1,13 @@
 #import <Foundation/Foundation.h>
 #if defined(__has_include) && __has_include(<mParticle_Apple_SDK/mParticle.h>)
     #import <mParticle_Apple_SDK/mParticle.h>
+    #import <mParticle_Apple_SDK/mParticle_Apple_SDK-Swift.h>
 #elif defined(__has_include) && __has_include(<mParticle_Apple_SDK_NoLocation/mParticle.h>)
     #import <mParticle_Apple_SDK_NoLocation/mParticle.h>
+    #import <mParticle_Apple_SDK_NoLocation/mParticle_Apple_SDK-Swift.h>
 #else
     #import "mParticle.h"
+    #import "mParticle_Apple_SDK-Swift.h"
 #endif
 
 @interface MPKitFirebaseGA4Analytics : NSObject <MPKitProtocol>