fix end line on non-consecutive ranges ending at the highest bit not being drawn

Reviewed-on: #17
Reviewed-by: Louis Heredero <louis@herdac.ch>

src/renderer.typ

@@ -387,8 +387,10 @@
   }
   let range-boundaries = ()
   for r in struct.ranges.values() {
-    let i = to-real-i(if config.ltr-bits {r.start} else {r.end})
-    range-boundaries.push(i)
+    let start-i = to-real-i(if config.ltr-bits {r.start} else {r.end})
+    let end-i = to-real-i(if config.ltr-bits {r.end} else {r.start}) + 1
+    range-boundaries.push(start-i)
+    range-boundaries.push(end-i)
   }
 
   // Draw colors
@@ -472,9 +474,9 @@
     shapes += draw-text(range_.name, txt-col, name-x, name-y, fill: bg-col)
 
     // paint end line only if needed
+    let is-not-limit = if config.ltr-bits { start-i != 0 } else { end-i != struct.bits - 1 }
     if (
-      start-i != 0
-        and end-i != struct.bits - 1
+        is-not-limit
         and ranges
           .at(
             i