Fixes bad key use

app/src/main/java/net/pokeranalytics/android/util/Preferences.kt

@@ -250,11 +250,11 @@ class Preferences {
 		}
 
 		fun setBlogTipsTapped(context: Context) {
-			setInt(Keys.LATEST_BLOG_POST_ID_RETRIEVED, getLatestRetrievedBlogPostId(context), context)
+			setInt(Keys.LATEST_BLOG_POST_ID_DISPLAYED, getLatestRetrievedBlogPostId(context), context)
 		}
 
-		fun getLatestDisplayedBlogPostId(context: Context): Long {
+		fun getLatestDisplayedBlogPostId(context: Context): Int {
-			return getLong(Keys.LATEST_BLOG_POST_ID_DISPLAYED, context)
+			return getInt(Keys.LATEST_BLOG_POST_ID_DISPLAYED, context)
 		}
 
 		fun showBlogTips(show: Boolean, context: Context) {