Improve syntax lookup history behaviour

Use Next.Router.push instead of replace

Author: Bart Schuurmans

src/SyntaxLookup.mjs

@@ -180,16 +180,16 @@ function SyntaxLookup(Props) {
             if (match !== undefined) {
               var slug = GithubSlugger.slug(item.id);
               if (slug !== match) {
-                Next.Router.replace(router, "syntax-lookup#" + match);
+                Next.Router.push(router, "syntax-lookup#" + match);
               }
 
             } else {
-              Next.Router.replace(router, "syntax-lookup#" + GithubSlugger.slug(item.id));
+              Next.Router.push(router, "syntax-lookup#" + GithubSlugger.slug(item.id));
             }
           }
           if (exit === 1) {
             if (match !== undefined) {
-              Next.Router.replace(router, "syntax-lookup");
+              Next.Router.push(router, "syntax-lookup");
             }
 
           }

src/SyntaxLookup.res

@@ -185,13 +185,13 @@ let make = () => {
       let slug = GithubSlugger.slug(item.id)
 
       if slug !== anchor {
-        router->Next.Router.replace("syntax-lookup#" ++ anchor)
+        router->Next.Router.push("syntax-lookup#" ++ anchor)
       } else {
         ()
       }
     | (ShowDetails(item), None) =>
-      router->Next.Router.replace("syntax-lookup#" ++ GithubSlugger.slug(item.id))
-    | (_, Some(_)) => router->Next.Router.replace("syntax-lookup")
+      router->Next.Router.push("syntax-lookup#" ++ GithubSlugger.slug(item.id))
+    | (_, Some(_)) => router->Next.Router.push("syntax-lookup")
     | _ => ()
     }
     None