fix: Remove unread messages notification

[artonge]

This is unnecessarily spamming the view when the chat tab is closed. Also, this is kind of a redundant with the blue dot on the message icon.

B	A

[Antreesy]

I don't mind personally. Maybe we can make 'blue dot' more prompting, e.g. flashing with red/blue or opacity (like recording icon)? cc @nimishavijay

[nimishavijay]

I think the toast can often be useful for those with the chat closed. I don't think getting rid of this and fully relying on the tiny dot is a good idea, but I do get that the current version can be improved:

• A simple improvement would be to style it differently. We can give it a dark background, make it look different from the regular toast styling, and position it somewhere else with an animation and a shorter timeout, so it doesn't feel like "that annoying thing that doesn't go away"
• if we do want to remove it, then we could show a counter bubble next to the conversation icon with the number of unread messages, and maybe a soft shadow or something around that button, that would change every time there is a new message and bring attention to itself
• A way to make the toast more useful is to show the messages themselves in that little toast, but I'm guessing it is out of scope for now.