pcb: add discharge circuit for the engraver capacitors

pcb/lib/mainboard.kicad_sym

@@ -6538,7 +6538,7 @@
 				(alternate "CS" output line)
 			)
 			(pin power_in line
-				(at 0 12.7 270)
+				(at -2.54 12.7 270)
 				(length 2.54)
 				(name "VS"
 					(effects
@@ -6547,25 +6547,6 @@
 						)
 					)
 				)
-				(number "10"
-					(effects
-						(font
-							(size 1.27 1.27)
-						)
-					)
-				)
-			)
-			(pin power_in line
-				(at 0 12.7 270)
-				(length 2.54)
-				(hide yes)
-				(name "VS"
-					(effects
-						(font
-							(size 1.27 1.27)
-						)
-					)
-				)
 				(number "8"
 					(effects
 						(font
@@ -6577,7 +6558,6 @@
 			(pin power_in line
 				(at 0 12.7 270)
 				(length 2.54)
-				(hide yes)
 				(name "VS"
 					(effects
 						(font
@@ -6630,6 +6610,24 @@
 					)
 				)
 			)
+			(pin power_in line
+				(at 2.54 12.7 270)
+				(length 2.54)
+				(name "VS"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+				(number "10"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+			)
 			(pin no_connect line
 				(at 3.81 -8.89 90)
 				(length 2.54)

pcb/mainboard.kicad_prl

@@ -1,6 +1,6 @@
 {
   "board": {
-    "active_layer": 5,
+    "active_layer": 0,
     "active_layer_preset": "All Layers",
     "auto_track_width": true,
     "hidden_netclasses": [],