v1.1: Add weekly introductions

- Create a new migration adding a Weeks table, allowing for new weekly introductions
     and paving the way for multiple week handling.
 - Add route to update the weekly introduction
 - Move the week rendering to a specific week file
 - Update the templates to use the week number from the week data
 - Update templates to render and edit weekly introductions

templates/editable_truth.tera

@@ -2,7 +2,7 @@
     <h3>Vérité {{ truth.number }}</h3>
     <p>{{ truth.rendered_text | safe }}</p>
     <hr/>
-    <form action="/{{ week_number }}/edit/{{ truth.number }}" method="POST">
+    <form action="/{{ week_data.number }}/edit/{{ truth.number }}" method="POST">
         {% include "truth_editor" %}
     </form>
 </div>

templates/index.html.tera

@@ -33,11 +33,25 @@
     {% endif %}
 </div>
 
-<h2>Semaine {{ week_number }}</h2>
+<h2>Semaine {{ week_data.number }}</h2>
 <div class="page_body">
     <div class="truth_list">
+        <div class="week_intro">
+            {{ week_data.rendered_text | safe }}
+            {%- if user.is_admin == true -%}
+                <hr/>
+                <form action="/{{ week_data.number }}/edit" method="post">
+                    <textarea class="editor" name="raw_intro">
+                        {{- week_data.raw_text -}}
+                    </textarea>
+                    <button>
+                        Modifier l'introduction
+                    </button>
+                </form>
+            {% endif %}
+        </div>
         {% if user.logged_in == true and user.is_admin == false %}
-        <form id="truths" action="/{{ week_number }}/vote" method="POST">
+        <form id="truths" action="/{{ week_data.number }}/vote" method="POST">
         {% endif %}
 
             {# Truths start at 1 but the array starts at 0 #}
@@ -77,7 +91,7 @@
         {% if user.is_admin == true %}
             <div class="individual_truth">
                 <h3>Nouvelle vérité</h3>
-                <form action="/{{ week_number }}/new" method="POST">
+                <form action="/{{ week_data.number }}/new" method="POST">
                     {% include "truth_editor" %}
                 </form>
             </div>

templates/truth_editor.html.tera

@@ -1,4 +1,4 @@
-<textarea class="truth_editor" name="truth_raw_text">
+<textarea class="editor" name="truth_raw_text">
     {%- if truth.raw_text -%}
         {{- truth.raw_text -}}
     {%- endif -%}