Display My View boxes on 1 col when fixed position is OFF

Prior to this, with Timeline enabled, My View page would display the
boxes on a single column when $g_my_view_boxes_fixed_position = ON, and
2 columns when OFF.

Fixes #22095

my_view_page.php

@@ -136,7 +136,7 @@
 
 		# check the style of displaying boxes - fixed (ie. each box in a separate table cell) or not
 		# When timeline is hidden, only use 1 column is displayed
-		if( ON == $t_boxes_position ) {
+		if( $t_timeline_view_threshold_access || ON == $t_boxes_position ) {
 			if( $t_timeline_view_threshold_access || 1 == $t_counter%2 ) {
 				# for even box number start new row and column
 				echo '<tr><td class="myview-left-col">';