refactor: renomear package me.capcom.smsgateway → pt.whatsms.gateway

- namespace, applicationId, todos os ficheiros .kt/.xml/.gradle actualizados
- directório me/capcom/smsgateway/ → pt/whatsms/gateway/
- zero referências a capcom no código fonte

app/src/androidTest/java/pt/whatsms/gateway/ExampleInstrumentedTest.kt

@@ -1,4 +1,4 @@
-package me.capcom.smsgateway
+package pt.whatsms.gateway
 
 import androidx.test.ext.junit.runners.AndroidJUnit4
 import androidx.test.platform.app.InstrumentationRegistry
@@ -17,6 +17,6 @@ class ExampleInstrumentedTest {
     fun useAppContext() {
         // Context of the app under test.
         val appContext = InstrumentationRegistry.getInstrumentation().targetContext
-        assertEquals("me.capcom.smsgateway", appContext.packageName)
+        assertEquals("pt.whatsms.gateway", appContext.packageName)
     }
 }