Title the commits page "Commits"

The commits page set its browser tab title to "history", while the
breadcrumb and page content call it "Commits". Use "Commits" in the
title too.

src/views/repos/router.ts

@@ -1361,7 +1361,7 @@ export function repoTitle(loadedRoute: RepoLoadedRoute) {
     title.push("commit");
   } else if (loadedRoute.resource === "repo.history") {
     title.push(project.data.name);
-    title.push("history");
+    title.push("Commits");
   } else if (loadedRoute.resource === "repo.issue") {
     title.push(loadedRoute.params.issue.title);
     title.push("issue");