Added comments if libzim throw exception for articleCount and mediaCo…

…unt this will necessary to catch the all exception thrown by libzim to prevent the aborting of the rendering process of other zim files.

core/src/main/java/org/kiwix/kiwixmobile/core/reader/ZimFileReader.kt

@@ -160,14 +160,18 @@ class ZimFileReader constructor(
   private val mediaCount: Int?
     get() = try {
       jniKiwixReader.mediaCount
-    } catch (ignore: Exception) {
+    }
+    // catch all exceptions to prevent the aborting of the rendering process of other zim files.
+    catch (ignore: Exception) {
       Log.e(TAG, "Unable to find the media count $ignore")
       null
     }
   private val articleCount: Int?
     get() = try {
       jniKiwixReader.articleCount
-    } catch (ignore: Exception) {
+    }
+    // catch all exceptions to prevent the aborting of the rendering process of other zim files.
+    catch (ignore: Exception) {
       Log.e(TAG, "Unable to find the article count $ignore")
       null
     }