Fix inconsistent SignalType label

Author: guillaume-tgl

lib/src/main/java/com/telemetrydeck/sdk/SignalType.kt

@@ -4,11 +4,11 @@ enum class SignalType(val type: String) {
     ActivityCreated("ActivityCreated"),
     ActivityStarted("ActivityStarted"),
     ActivityResumed("ActivityResumed"),
-    ActivityPaused("onActivityPaused"),
+    ActivityPaused("ActivityPaused"),
     ActivityStopped("ActivityStopped"),
     ActivitySaveInstanceState("ActivitySaveInstanceState"),
     ActivityDestroyed("ActivityDestroyed"),
     AppBackground("AppBackground"),
     AppForeground("AppForeground"),
     NewSessionBegan("NewSessionBegan"),
-}
+}