Vivedino Xplorer: finer 0.4 layers, IQEX toolchange prime, lighter assets

- IQEX (0.4/0.6/0.8): retract_restart_extra_toolchange 1 -> 0 on all four
  tools. With the silicone ooze blockers the parked nozzle stays primed,
  so an extra 1 mm after each toolchange can over-extrude at the restart.
- Add 0.04mm Ultra Fine and 0.08mm Extra Fine @Xplorer 0.4 on the existing
  fdm_process_xplorer_common ladder for all four 0.4 printers. Same speeds,
  accelerations and line widths as the 0.12mm Fine tier; only the layer
  height, shell layers, bottom_shell_thickness 0.6 and (0.04) top solid
  infill flow differ. Support stays off, as on the other tiers.
- Xplorer_buildplate_model.stl: decimated from 82,508 to 10,000 triangles
  (4.1 MB -> 500 KB). Same bounding box and origin, so bed_model is unchanged.
- Covers: one distinct 240x240 image per model instead of the same image
  copied four times (39 KB each -> about 11 KB each).

resources/profiles/Vivedino.json

@@ -66,6 +66,14 @@
 			"name": "fdm_process_xplorer_common",
 			"sub_path": "process/fdm_process_xplorer_common.json"
 		},
+		{
+			"name": "0.04mm Ultra Fine @Xplorer 0.4",
+			"sub_path": "process/0.04mm Ultra Fine @Xplorer 0.4.json"
+		},
+		{
+			"name": "0.08mm Extra Fine @Xplorer 0.4",
+			"sub_path": "process/0.08mm Extra Fine @Xplorer 0.4.json"
+		},
 		{
 			"name": "0.12mm Fine @Xplorer 0.4",
 			"sub_path": "process/0.12mm Fine @Xplorer 0.4.json"

resources/profiles/Vivedino/machine/Xplorer IQEX 0.4 nozzle.json

@@ -331,10 +331,10 @@
 		"0"
 	],
 	"retract_restart_extra_toolchange": [
-		"1",
-		"1",
-		"1",
-		"1"
+		"0",
+		"0",
+		"0",
+		"0"
 	],
 	"retract_when_changing_layer": [
 		"1",

resources/profiles/Vivedino/machine/Xplorer IQEX 0.6 nozzle.json

@@ -331,10 +331,10 @@
 		"0"
 	],
 	"retract_restart_extra_toolchange": [
-		"1",
-		"1",
-		"1",
-		"1"
+		"0",
+		"0",
+		"0",
+		"0"
 	],
 	"retract_when_changing_layer": [
 		"1",

resources/profiles/Vivedino/machine/Xplorer IQEX 0.8 nozzle.json

@@ -331,10 +331,10 @@
 		"0"
 	],
 	"retract_restart_extra_toolchange": [
-		"1",
-		"1",
-		"1",
-		"1"
+		"0",
+		"0",
+		"0",
+		"0"
 	],
 	"retract_when_changing_layer": [
 		"1",

resources/profiles/Vivedino/process/0.04mm Ultra Fine @Xplorer 0.4.json

@@ -0,0 +1,29 @@
+{
+	"type": "process",
+	"name": "0.04mm Ultra Fine @Xplorer 0.4",
+	"inherits": "fdm_process_xplorer_common",
+	"from": "system",
+	"setting_id": "7SZOHFM1nfZsGYHe",
+	"instantiation": "true",
+	"bottom_shell_layers": "7",
+	"bottom_shell_thickness": "0.6",
+	"initial_layer_print_height": "0.3",
+	"inner_wall_speed": "190",
+	"internal_solid_infill_acceleration": "100%",
+	"min_skirt_length": "0",
+	"outer_wall_speed": "130",
+	"skirt_distance": "3",
+	"skirt_loops": "1",
+	"slowdown_for_curled_perimeters": "1",
+	"small_perimeter_speed": "50%",
+	"sparse_infill_acceleration": "100%",
+	"top_shell_layers": "9",
+	"top_solid_infill_flow_ratio": "1",
+	"layer_height": "0.04",
+	"compatible_printers": [
+		"Xplorer Single 0.4 nozzle",
+		"Xplorer IDEX 0.4 nozzle",
+		"Xplorer Dual Gantry 0.4 nozzle",
+		"Xplorer IQEX 0.4 nozzle"
+	]
+}

resources/profiles/Vivedino/process/0.08mm Extra Fine @Xplorer 0.4.json

@@ -0,0 +1,29 @@
+{
+	"type": "process",
+	"name": "0.08mm Extra Fine @Xplorer 0.4",
+	"inherits": "fdm_process_xplorer_common",
+	"from": "system",
+	"setting_id": "OvD7mwbTHKOUsgiT",
+	"instantiation": "true",
+	"bottom_shell_layers": "4",
+	"bottom_shell_thickness": "0.6",
+	"initial_layer_print_height": "0.3",
+	"inner_wall_speed": "190",
+	"internal_solid_infill_acceleration": "100%",
+	"min_skirt_length": "0",
+	"outer_wall_speed": "130",
+	"skirt_distance": "3",
+	"skirt_loops": "1",
+	"slowdown_for_curled_perimeters": "1",
+	"small_perimeter_speed": "50%",
+	"sparse_infill_acceleration": "100%",
+	"top_shell_layers": "5",
+	"top_solid_infill_flow_ratio": "0.87",
+	"layer_height": "0.08",
+	"compatible_printers": [
+		"Xplorer Single 0.4 nozzle",
+		"Xplorer IDEX 0.4 nozzle",
+		"Xplorer Dual Gantry 0.4 nozzle",
+		"Xplorer IQEX 0.4 nozzle"
+	]
+}