Put the primary menu in the sidebar and the chat actions in the chat view header

[lo2dev]

Moves primary menu in the sidebar and the chat actions menu in the chat window.

I think it makes more sense to have chat actions in the chat window header rather than the sidebar. You usually find the primary menu in sidebars if the app has one, but not always, depending on the situation.

I also moved the "Clear Chat" option in the chat actions menu for the same reason.

[lo2dev]

Just realized I probably should've left "Import chat" in the sidebar

[lo2dev]

This might trip people used to the current layout. It doesn't have a big importance so feel free to ignore this PR :)

[Jeffser]

I am so sorry, I didn't see this PR and I just implemented something really similar, thanks for your work anyways, sorry again

[lo2dev]

No worries :)