Fix bug where video dimensions aren't always correct in chat view.

app/src/main/java/org/thoughtcrime/securesms/database/AttachmentTable.kt

@@ -2099,12 +2099,15 @@ class AttachmentTable(
       val contentValues = contentValuesOf(
         DATA_SIZE to newDataFileInfo.length,
         CONTENT_TYPE to mediaStream.mimeType,
-        WIDTH to mediaStream.width,
-        HEIGHT to mediaStream.height,
         DATA_FILE to newDataFileInfo.file.absolutePath,
         DATA_RANDOM to newDataFileInfo.random
       )
 
+      if (mediaStream.width > 0 && mediaStream.height > 0) {
+        contentValues.put(WIDTH, mediaStream.width)
+        contentValues.put(HEIGHT, mediaStream.height)
+      }
+
       val updateCount = db.update(TABLE_NAME)
         .values(contentValues)
         .where("$ID = ? OR $DATA_FILE = ?", attachmentId.id, existingDataFileInfo.file.absolutePath)