Navigation changes for user and main menu

[Kristina Hoeppner]

This is in addition to the changes we've made for the navigation in bug #1782954

1. In the user menu, please change "Settings" in the sub menu that takes you to the account preferences page to "Preferences".

2. In the main menu, create the menu category "Share" below "Create" with the lock icon. In this menu, please move "Shared by me" and "Shared with me".

3. In the "Engage" menu category, please move "Topics" right above "Institution membership" and rename it to "Discussion topics".

[Robert Lyon (robertl-9)]

https://reviews.mahara.org/#/c/9154/

[Mahara Bot (dev-mahara)]

Reviewed: https://reviews.mahara.org/9154
Committed: https://git.mahara.org/mahara/mahara/commit/d42dfcd6ab67df625c570723906c5b7f225f0c79
Submitter: Robert Lyon (<email address hidden>)
Branch: master

commit d42dfcd6ab67df625c570723906c5b7f225f0c79
Author: Robert Lyon <email address hidden>
Date: Mon Oct 1 08:39:30 2018 +1300

Bug 1795272: Make navigation menu changes for more clarity

1. Change "Settings" to "Preferences" in the user menu's "Settings"
category.
2. Move "Shared by me" and "Shared with me" to a new "Share" category in
the main menu to conform with the three main elements of Mahara.

Change-Id: I0af04a22df5d6469c74674225a7c68c642d99281
Signed-off-by: Robert Lyon <email address hidden>