Sketch on an origin plane faces the side you clicked (#1587)

Fixes #1586.

crates/ui-egui/tests/scenarios/s07_components_joint_drive.json

@@ -113,7 +113,7 @@
   "click": {
    "sketch": [
     50,
-    -10
+    10
    ]
   }
  },

crates/ui-egui/tests/scenarios/s20_section_with_joint_drive.json

@@ -113,7 +113,7 @@
   "click": {
    "sketch": [
     50,
-    -10
+    10
    ]
   }
  },

crates/ui-egui/tests/scenarios/s26_drive_joint_typed.json

@@ -113,7 +113,7 @@
   "click": {
    "sketch": [
     50,
-    -10
+    10
    ]
   }
  },

crates/ui-egui/tests/scenarios/s32_cut_in_active_component.json

@@ -102,7 +102,7 @@
   "click": {
    "sketch": [
     52,
-    -10
+    10
    ]
   }
  },

crates/ui-egui/tests/scenarios/s37_browser_chevrons.json

@@ -116,7 +116,7 @@
   "click": {
    "sketch": [
     50,
-    -10
+    10
    ]
   }
  },