chore(packages): Adjust autodoc code blocks to not explode manual

Author: alerque

packages/autodoc/init.lua

@@ -380,15 +380,16 @@ function package:registerCommands ()
          SILE.call("verbatim:font")
          SILE.call("language", { main = "und" })
          -- Rather than absolutizing 4 different values, just do it once and cache it
+         local bs = SILE.types.measurement("1bs"):absolute()
          local ex = SILE.types.measurement("1ex"):absolute()
          local pushline = function ()
             colorWrapper("note", function ()
                SILE.call("novbreak")
-               SILE.typesetter:pushVglue(ex)
+               SILE.typesetter:pushVglue(-bs)
                SILE.call("novbreak")
                SILE.call("fullrule", { thickness = "0.5pt" })
                SILE.call("novbreak")
-               SILE.typesetter:pushVglue(-ex)
+               SILE.typesetter:pushVglue(-bs-ex)
                SILE.call("novbreak")
             end)
          end