Autocomplete improvements

Problem/Motivation

With large menu systems, menu items will have repeat names. When searching for these menu items, you can't tell the difference between them.

Steps to reproduce

1. Create two menus
2. Add menu links with the same name to both of them
3. Create a node and provide a menu link
4. Use the search feature to find the menu link with the same name

Proposed resolution

1. Attach the bread crumb into the display text so that a user can easily find the parent menu in use.
2. Limit the autocomplete to only 10 items so the list doesn't get too long.

Remaining tasks

None, unless you have additional improvements you wish to add.

User interface changes

1. Search now includes the breadcrumbs with bolding around the menu title.
2. Hover color has now been set.
3. Limit the autocomplete list to only 10 items.

API changes

None.

Data model changes

None.