Add a calendar to schedule a recipe to a chosen date (WIP)

backend/templates/calendar.html

@@ -0,0 +1,45 @@
+<div class="calendar">
+    <div class="month-selector">
+        <span class="prev">PREV</span>
+        <span class="year" ></span>
+
+        {% for month in [
+            Sentence::CalendarJanuary,
+            Sentence::CalendarFebruary,
+            Sentence::CalendarMarch,
+            Sentence::CalendarApril,
+            Sentence::CalendarMay,
+            Sentence::CalendarJune,
+            Sentence::CalendarJuly,
+            Sentence::CalendarAugust,
+            Sentence::CalendarSeptember,
+            Sentence::CalendarOctober,
+            Sentence::CalendarNovember,
+            Sentence::CalendarDecember,
+        ] %}
+            <span class="month">{{ tr.t(*month) }}</span>
+        {% endfor %}
+
+        <span class="next">NEXT</span>
+    </div>
+    <ul class="weekdays">
+        {% for day in [
+            Sentence::CalendarMondayAbbreviation,
+            Sentence::CalendarTuesdayAbbreviation,
+            Sentence::CalendarWednesdayAbbreviation,
+            Sentence::CalendarThursdayAbbreviation,
+            Sentence::CalendarFridayAbbreviation,
+            Sentence::CalendarSaturdayAbbreviation,
+            Sentence::CalendarSundayAbbreviation,
+        ] %}
+            <li class="weekday">{{ tr.t(*day) }}</li>
+        {% endfor %}
+
+    <ul class="days">
+        {% for i in 0..7 %}
+            {% for j in 0..5 %}
+                <li id="day-{{i}}{{j}}"></li>
+            {% endfor %}
+        {% endfor %}
+    </ul>
+</div>