🚸 Remove env check in robots.txt generation

Fixes: #620

CHANGELOG.md

@@ -18,6 +18,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 ### Changed
 
 - ⚠️ Renamed the `params.rtl` language parameter to `languageDirection` as this is now supported by Hugo ([#583](https://github.com/jpanther/congo/issues/583))
+- Robots.txt file now allows all by default without concern for whether the environment is set to production ([#620](https://github.com/jpanther/congo/pull/620))
 - Upgrade to Mermaid v10.4.0 ([#577](https://github.com/jpanther/congo/pull/577), [#582](https://github.com/jpanther/congo/pull/582), [#626](https://github.com/jpanther/congo/pull/626), [#638](https://github.com/jpanther/congo/pull/638))
 - Upgrade to KaTeX v0.16.8 ([#590](https://github.com/jpanther/congo/pull/590))
 - Upgrade to Tailwind v3.3.3 ([#602](https://github.com/jpanther/congo/pull/602))

layouts/robots.txt

@@ -1,7 +1,3 @@
 User-agent: *
-{{- if hugo.IsProduction | or (eq .Site.Params.env "production") }}
 Allow: /
-{{- else }}
-Disallow: /
-{{- end }}
 Sitemap: {{ "sitemap.xml" | absURL }}