Hide schedules Media from ConversationSettings

[Sagar0-0]

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Description

Reasons for doing this:

1. Schedules messages are not logically "shared" in the thread.
2. We can go to the Media Preview Screen for Scheduled Image, which can allow us to delete a schedule message for everyone. So, possibility of a Deleted message is still scheduled.
3. A scheduled media message is present in the MediaOverview, from where we can select and delete it, this cause inconsistencies with the scheduled message flow.
4. Schedules Media message show the System.currentTimeMillis date for the media in MediaOverview screen but actually the media isn't sent yet!

So, now showing the Scheduled media is probably the best choice which other Messengers like Telegram also follow.

https://github.com/user-attachments/assets/2ac1ce5b-2ddd-4803-81dd-ac09e39b5c31