Removed popup when including a package

Fixed the functionality which made an information
dialog pop up when including any package.

[HOB #4138]

Signed-off-by: Andrei Dinu <andrei.adrianx.dinu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
hob: add tooltip on "clear search" button

[YOCTO #4116]
Signed-off-by: Cristiana Voicu <cristiana.voicu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
hob: giving focus to the search field loses the table sorting

Giving focus to the search text field should not impact the table
sorting.

[YOCTO #4113]
Signed-off-by: Cristiana Voicu <cristiana.voicu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>