refactor: Sidebar collapse

[douglasmuraoka]

Removes the old SidebarToggle component and allows users to collapse the sidebar even when window width is greater than 980px. Adds a Pin button that fixes the sidebar, avoiding any collapses.
Once collapsed, expands the sidebar when on mouse over, and collapses on mouse leave.

Collapsed:

Expanded:

Closes #1759.

[davimacedo]

@douglasmuraoka thanks for working on this. Few questions:

• The arrow in the App Select stopped changing when the Select is opened/closed. Is it also possible to change its color to white?
• Is it possible to change the pin button color to white?
• Is it possible to have the pin button changed so the user can know if it is pinned or not?

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[tehsunnliu]

Hi all, I've noticed this issue has not been merged. I was facing issues when using the parse-dashboard on a smaller screen.
The sidebar doesn't collapse and the table goes behind the sidebar hiding the columns behind it. I'm using parse release version 2.1.0.

Is there any chance of getting this fixed?
Thank you.

[ghost]

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[tehsunnliu]

Please merge this. The dashboard sidebar needs a Fix.
Or guide me to fix the Danger.

[mtrezza]

@tehsunnliu Thanks for bringing this to our attention. I think it just needs a rebase on master, then we can merge it. I'll look into that.

[mtrezza]

There are some fixed necessary, continued in #1760

[tehsunnliu]

Hi @mtrezza Thank you so much for initiating this. I'll check this out.