Rename skirt_speed to skirt_brim_speed

Also updated the description. Because this concerns not only the skirt, but also the brim.

Contributes to issue CURA-1678.

plugins/VersionUpgrade/VersionUpgrade21to22/VersionUpgrade21to22.py

@@ -31,6 +31,7 @@ _setting_name_translations = {
     "remove_overlapping_walls_enabled": "travel_compensate_overlapping_walls_enabled",
     "remove_overlapping_walls_x_enabled": "travel_compensate_overlapping_walls_x_enabled",
     "retraction_hop": "retraction_hop_enabled",
+    "skirt_speed": "skirt_brim_speed",
     "speed_support_lines": "speed_support_infill"
 }
 
@@ -157,6 +158,9 @@ class VersionUpgrade21to22(VersionUpgrade):
             elif key == "retraction_hop": #Setting key was changed.
                 del settings[key]
                 settings["retraction_hop_enabled"] = value
+            elif key == "skirt_speed": #Setting key was changed.
+                del settings[key]
+                settings["skirt_brim_speed"] = value
             elif key == "speed_support_lines": #Setting key was changed.
                 del settings[key]
                 settings["speed_support_infill"] = value

resources/definitions/bq_hephestos_2.def.json

@@ -38,7 +38,7 @@
         "speed_wall_0": { "default_value": 30 },
         "speed_infill": { "default_value": 80 },
         "speed_topbottom": { "default_value": 35 },
-        "skirt_speed": { "default_value": 35 },
+        "skirt_brim_speed": { "default_value": 35 },
         "skirt_line_count": { "default_value": 4 },
         "skirt_minimal_length": { "default_value": 30 },
         "skirt_gap": { "default_value": 6 },

resources/definitions/bq_witbox_2.def.json

@@ -89,7 +89,7 @@
         "speed_topbottom": {
             "default_value": 35
         },
-        "skirt_speed": {
+        "skirt_brim_speed": {
             "default_value": 35
         },
         "skirt_line_count": {

resources/definitions/fdmprinter.def.json

@@ -1520,9 +1520,9 @@
                     "maximum_value_warning": "300",
                     "settable_per_mesh": true
                 },
-                "skirt_speed": {
-                    "label": "Skirt Speed",
-                    "description": "The speed at which the skirt and brim are printed. Normally this is done at the initial layer speed, but sometimes you might want to print the skirt at a different speed.",
+                "skirt_brim_speed": {
+                    "label": "Skirt/Brim Speed",
+                    "description": "The speed at which the skirt and brim are printed. Normally this is done at the initial layer speed, but sometimes you might want to print the skirt or brim at a different speed.",
                     "unit": "mm/s",
                     "type": "float",
                     "default_value": 30,

resources/definitions/maker_starter.def.json

@@ -94,7 +94,7 @@
         "speed_layer_0": {
             "default_value": 20
         },
-        "skirt_speed": {
+        "skirt_brim_speed": {
             "default_value": 15
         },
         "speed_slowdown_layers": {