Qml Profilder Views: Make consistent with other views

Use double click on double click platforms, fix keyboard activation

Change-Id: I36891fb2f733684a1a5c3787e0682cb9ddccb0d3
Reviewed-by: Ulf Hermann <ulf.hermann@digia.com>
DeviceProcessDialog: Use Utils::TreeView

Should not change any behavior.

Change-Id: Ibe3ac32aea4c25f8752c83dd711eceb1ccd19f23
Reviewed-by: Christian Kandeler <christian.kandeler@digia.com>