Fix some small issues for Prusa XL profiles:

1. fixed some wrong parameter names
2. fixed bed texture
3. Fix typo "pursa"
4. Use Prusa XL in all cases

resources/profiles/Prusa/process/process_common_xl.json

@@ -15,7 +15,7 @@
   "gap_fill_target": "everywhere",
   "bottom_shell_thickness": "0.5",
   "infill_anchor_max": "12",
-  "sparse_infill_pattern": "grid",
+  "sparse_infill_pattern": "crosshatch",
   "sparse_infill_density": "15%",
   "fuzzy_skin_point_distance": "0.8",
   "fuzzy_skin_thickness": "0.3",
@@ -31,7 +31,7 @@
   "support_base_pattern_spacing": "2",
   "support_interface_top_layers": "5",
   "support_interface_bottom_layers": "0",
-  "support_interface_pattern": "rectilinear",
+  "support_interface_pattern": "auto",
   "support_interface_spacing": "0.2",
   "support_object_xy_distance": "80%",
   "tree_support_branch_angle_organic": "40",