Fixup static build and adjust text

* app.hy and blog.hy - fix removal of Hy `none?`
* layout.html - move RSS ad to footer
* styles.css - make text color apply to all text on brown background

app.hy

@@ -47,7 +47,7 @@ This is the main Flask application for https://tree.st
     ;; post-name is checked to be None here as opposed to
     ;; in post-exists? so that the regular case (rendering
     ;; the blog feed) has a slightly lower overhead.
-    [(or (none? post-name) (post-exists? post-name))
+    [(or (= None post-name) (post-exists? post-name))
      (render-template "blog.html"
                       :posts (retrieve-posts post-name)
                       :type "blog")]

blog.hy

@@ -27,7 +27,7 @@ Blog helper functions
  Collect and format the name(s)
  of the post(s) to be rendered.
  """
- (if (none? post-name)
+ (if (= None post-name)
      (lfor post (listdir (+ _posts-prefix _posts-dir))
            :if (.endswith post _posts-suffix)
            (+ _posts-dir post))

static/styles.css

@@ -42,6 +42,7 @@ nav {
 
 main {
   background-color: brown;
+  color: var(--text-color);
   margin: 0 auto 0 auto;
   max-width: 50rem;
   padding: 3rem;
@@ -57,7 +58,6 @@ footer {
 /* Blog styling */
 
 .blog-post {
-  color: var(--text-color);
   border-bottom: dotted;
   padding: 0rem 0rem 2.5rem 1rem;
   text-align: left;

templates/layout.html

@@ -21,8 +21,8 @@
       {% block main %}{% endblock %}
     </main>
     <footer>
-      <p>Subscribe to my <a href="{{ url_for('feed') }}">RSS feed</a></p>
       <small>
+	Subscribe to my <a href="{{ url_for('feed') }}">RSS feed</a><br />
         All code (Hy, HTML, Jinja, CSS) for this website is licensed under the <a href="https://www.gnu.org/licenses/gpl-3.0-standalone.html">GPLv3</a>
         and available <a href="https://github.com/Marie-Joseph/hy-website">here</a>.<br />
         All blog posts (the raw text) are licensed <a href="https://creativecommons.org/licenses/by-sa/4.0/legalcode">CC-BY-SA 4.0</a>.