feat: display boost visibility (#4953)

[Exagone313]

Closes #4953

[Exagone313]

not sure about those strings

I suggest also:

Suggested change

	<string name="post_boosted_unlisted_format">%1$s boosted (Unlisted)</string>
	<string name="post_boosted_private_format">%1$s boosted (Followers-Only)</string>
	<string name="post_boosted_unlisted_format">%1$s quietly boosted</string>
	<string name="post_boosted_private_format">%1$s privately boosted</string>

[connyduck]

Yeah, so, I'm afraid that displaying it with the StatusDetailedViewHolder is probably a lot more complicated

• Forward the id of the boost instead of the actual post to the ViewThreadActivity, everywhere it is opened
• adjust the logic to handle boosts
• Add an additional view to display the info