fixed multiplexers with named ports + minor changes

src/elements/alu.typ

@@ -48,7 +48,6 @@
   stroke: black + 1pt,
   id: "",
   debug: (
-    grid: false,
     ports: false
   )
 ) = {

src/elements/block.typ

@@ -26,7 +26,6 @@
   stroke: black + 1pt,
   id: "",
   debug: (
-    grid: false,
     ports: false
   )
 ) = element.elmt(

src/elements/element.typ

@@ -32,7 +32,6 @@
   auto-ports: true,
   ports-y: (),
   debug: (
-    grid: false,
     ports: false
   )
 ) = draw.get-ctx(ctx => {

src/elements/extender.typ

@@ -36,7 +36,6 @@
   stroke: black + 1pt,
   id: "",
   debug: (
-    grid: false,
     ports: false
   )
 ) = {

src/elements/multiplexer.typ

@@ -33,7 +33,6 @@
   stroke: black + 1pt,
   id: "",
   debug: (
-    grid: false,
     ports: false
   )
 ) = {
@@ -45,6 +44,10 @@
       let bits = util.lpad(str(i, base: 2), nbits)
       ports.push((id: "in" + str(i), name: bits))
     }
+  } else {
+    for (i, port) in entries.enumerate() {
+      ports.push((id: "in" + str(i), name: port))
+    }
   }
   
   element.elmt(