fix: baseURL variable on See all posts button (#38)

* Fix See all posts error

Add baseURL variable to link of see all posts button.

* Fix See all posts button link

Fix for 404 errors in see all posts if the default URL is not root. Add a baseURL variable to the link in the button.

* Retuching Code of See all posts button

Apply by changing all publishing buttons to the code suggested by @kusyka911

layouts/index.html

@@ -17,7 +17,9 @@ <h3 class="posts-item-note" aria-label="Recent Posts">Recent Posts</h3>
             {{ end }}
             {{ if gt (len $posts) 5 }}
             <p>
-                <a href="/posts/">See all posts</a>
+                {{ range $firstSection := (where .Site.Sections "Section" "in" (first 1 (.Site.Params.mainSections))) }}
+                <a href="{{ $firstSection.Permalink }}">See all posts</a>
+                {{ end }}
             </p>
             {{ end }}
         </main>