Views.Job_build: Avoiding too much indentation with current ocp-indent settings via less nesting

lib/views.ml

@@ -539,26 +539,29 @@ module Job_build = struct
     "
 
   let make_viz_section ~name ~artifacts ~uuid =
-    [
-      (* [ H.h3 [txt "Analysis"] ]; *)
-      [ H.p [
+    let viz_deps_iframe = [
       let src = Fmt.str "/job/%s/build/%a/vizdependencies" name Uuidm.pp uuid in
       H.iframe ~a:H.[
           a_src src;
           a_title "Opam dependencies";
           a_style viz_style_deps
         ] []
-          ]];
-      if not @@ contains_debug_bin artifacts then [] else [
-        H.p [
+    ]
+    in
+    let viz_treemap_iframe = lazy [
       let src = Fmt.str "/job/%s/build/%a/viztreemap" name Uuidm.pp uuid in
       H.iframe ~a:H.[
           a_src src;
           a_title "Binary dissection";
           a_style viz_style_treemap
         ] []
-        ]];
-    ] |> List.flatten
+    ]
+    in
+    List.flatten [
+      [ H.p viz_deps_iframe];
+      if not @@ contains_debug_bin artifacts then [] else [
+        H.p @@ Lazy.force viz_treemap_iframe ];
+    ] 
 
   let make
       ~name