Pressing Enter in dash search box leads to inconsistent and unpredictable behavior
Steps to reproduce:
1.1 Press Super key, by default the home lens shows a mixed results of recently used applications, file and folders. Pressing Enter without performing any search does not launch the first application shown in the dash.
1.2 Without exiting the dash (from the previous step), press Super + a to enter the application lens. Pressing Enter will launch the first application.
2. If however, you proceed directly to the application lens and press enter, the first application is not launched. This behavior is also applicable to other lenses.
3.1 Press Super and type a search term and then press enter, the first search result is launched.
3.2 Press Super again, where the previously entered search term is shown and press enter, the first search result is not launched this time.
What is expected:
like gnome-shell, the first result is always selected, and always opens when enter is pressed. also, please make the selected background and animation the same one as unity-2d.