Quick, in-post account switching

### Problem I have

Let's say I come across a post that I like, but I want to interact with it using another account that is not my main account, that would mean i'd have to switch account, then do the task of searching for that specific post, which is already quite suboptimal

### Solution I'd like

Perhaps allow for people to have a little drop down menu, or add the user's current account's profile picture next to the message composer box, so they can click on it and choose what account to use for a certain action to be performed.

### Alternatives considered

None, really.

### Other

No.