Add timeout 30 secs to make less fragile.

The check_screen function checks for the existing tag
but it only waits 1 second by default. In this time,
Abrt will not even start so we need to prolong
the check_screen timeout to make sure the application
has started (or at least give it enough time to try).

tests/apps_startstop/kde/abrt.pm

@@ -9,8 +9,16 @@ sub run {
     my $self = shift;
     # Start the application
     menu_launch_type('abrt');
-    # Check that it is started
-    unless (check_screen('abrt_runs')) {
+    # Check that the application has started.
+    # On KDE, the test failed when Abrt started
+    # and there was an error caught.
+    # Now, if we do not find the needle that
+    # checks Abrt has started, we will also
+    # check for a reported issue - if we find that
+    # we can assume that Abrt has started indeed.
+    unless (check_screen('abrt_runs', timeout => 30)) {
+        # The above check needs some timeout because
+        # it might take some time before Abrt starts.
         assert_screen('abrt_runs_found_problem');
         record_soft_failure("Abrt has reported issues.");
     }