Add access restrictions to UI (#19)

- Vary default user access for new web logs (#19)
- Add htmx detection to not auth/404 handlers
- Bump version

src/admin-theme/_layout.liquid

@@ -7,20 +7,26 @@
         <span class="navbar-toggler-icon"></span>
       </button>
       <div class="collapse navbar-collapse" id="navbarText">
-        {% if logged_on -%}
+        {% if is_logged_on -%}
           <ul class="navbar-nav">
             {{ "admin/dashboard" | nav_link: "Dashboard" }}
-            {{ "admin/pages" | nav_link: "Pages" }}
-            {{ "admin/posts" | nav_link: "Posts" }}
-            {{ "admin/uploads" | nav_link: "Uploads" }}
-            {{ "admin/categories" | nav_link: "Categories" }}
-            {{ "admin/settings" | nav_link: "Settings" }}
+            {% if is_author %}
+              {{ "admin/pages" | nav_link: "Pages" }}
+              {{ "admin/posts" | nav_link: "Posts" }}
+              {{ "admin/uploads" | nav_link: "Uploads" }}
+            {% endif %}
+            {% if is_web_log_admin %}
+              {{ "admin/categories" | nav_link: "Categories" }}
+              {{ "admin/settings" | nav_link: "Settings" }}
+            {% endif %}
           </ul>
         {%- endif %}
         <ul class="navbar-nav flex-grow-1 justify-content-end">
-          {% if logged_on -%}
+          {% if is_logged_on -%}
             {{ "admin/user/edit" | nav_link: "Edit User" }}
-            {{ "user/log-off" | nav_link: "Log Off" }}
+            <li class="nav-item">
+              <a class="nav-link" href="{{ "user/log-off" | relative_link }}" hx-boost="false">Log Off</a>
+            </li>
           {%- else -%}
             {{ "user/log-on" | nav_link: "Log On" }}
           {%- endif %}