fix: audio timestamp for learn greetings task 7

[ojeytonwilliams]

Checklist:

• I have read and followed the contribution guidelines.
• I have read and followed the how to open a pull request guide.
• My pull request targets the main branch of freeCodeCamp.
• I have tested these changes either locally on my machine, or GitPod.

If you listen to https://www.freecodecamp.org/learn/a2-english-for-developers/learn-greetings-in-your-first-day-at-the-office/task-7 you can just hear the start of the next sentence. This should fix that.

[moT01]

While reviewing this, I noticed quite a few where the dialogue wasn't synced with the text. e.g. the audio cut off early or late. Some were quite significant. I want to look into it before we start adjusting all the timestamps, cause the problem could be elsewhere and the timestamps might be correct as they are.

[ojeytonwilliams]

Yep, that's fair. It seemed fairly consistent for me, but I spoke to Daniel and apparently that's not typical.

[ojeytonwilliams]

As Tom said

problem could be elsewhere and the timestamps might be correct as they are.

So I'm closing as we (mostly Tom) are working on a general solution.