🐛 fix: ensure spacing when all projects are shown

Fixes #303.

sass/parts/_posts_list.scss

@@ -80,8 +80,8 @@
     margin-top: 4rem;
 }
 
-.projects-first #all-projects {
+.projects-first #posts-list {
-    margin-bottom: 4rem;
+    margin-top: 4rem;
 }
 
 @media only screen and (max-width: 1100px) {

templates/partials/main_page_posts_list.html

@@ -1,4 +1,4 @@
-<div class="list">
+<div id="posts-list">
     <div>
         {{ macros_page_header::page_header(title=section.title) }}
     </div>

templates/partials/main_page_projects_list.html

@@ -9,7 +9,7 @@
         {%- include "partials/cards_pages.html" -%}
     {%- endif -%}
     {%- if show_pages | length > max_projects -%}
-        <div class="all-posts {{ first_section }}-first" id="all-projects">
+        <div class="all-posts" id="all-projects">
             <a href="{{ get_url(path=projects_section.path, lang=lang) }}/">{{ macros_translate::translate(key="all_projects", default="All projects", language_strings=language_strings) }}&nbsp;<span class="arrow">⟶</span></a>
         </div>
     {%- endif -%}