Limit number of boot menu entries to match box size, this usually should be enough to display all entries

xtldr2/textui.c

@@ -59,6 +59,13 @@ BlDisplayBootMenu()
 
         /* Check if there is anything to show in the boot menu */
         if(NumberOfEntries > 0) {
+            /* Check if all menu entries will fit into the menu box */
+            if(NumberOfEntries > Handle.Height - 2)
+            {
+                /* Too many menu entries, limit entries to match box height (-2 for upper and bottom borders) */
+                NumberOfEntries = Handle.Height - 2;
+            }
+
             /* Iterate through all menu entries */
             for(Index = 0; Index < NumberOfEntries; Index++)
             {