fix: span end should not be before the start

[prashantsaini1]

Fix

IndexOutOfBoundsException crash issue.

Test

1. We could not reproduce it on local but we had multiple reports from Firebase on Samsung devices. Looks like it's specific to some custom emoji implementation as per the logs in the original issue.

Review

@mzorz

Make sure strings will be translated:

• [x] If there are new strings that have to be translated, I have added them to the client's strings.xml as a part of the integration PR.