Filter Adjustments - fixes T103

Summary:
* app wide filter adjustments
	* role-filter
	* message-filter

* removes block-grid

* wraps clickable `<li>` in `<a>` tags.

* removes message-filter `fa-icons`
	* they were making the responsive layouts tight
	* needed the extra space
	* not essential

* fixes indentation

Test Plan:
* hover and click user roles
	* message filter should work the same once wired up
* resize screen for responsive views

Reviewers: shadowhand, rjmackay

Reviewed By: shadowhand, rjmackay

Subscribers: dkobia, eyedol

Maniphest Tasks: T103

Differential Revision: https://phabricator.ushahidi.com/D73