- Fixes for construct_absolute_url function

- Refactor notification email generation
- Update template file
- Add separate templates folder for email

InvenTree/templates/email/low_stock_notification.html

@@ -0,0 +1,35 @@
+{% load i18n %}
+{% load inventree_extras %}
+
+<table style="border-collapse:collapse; width: 80%;margin-left: 10%; font-size: 1rem">
+
+    <tr style="background: aliceblue; height: 4rem;">
+        <th colspan="3" style="padding-bottom: 1rem; font-size: 1.25rem; color:rgb(210, 20, 20)">
+            <p>{% blocktrans with part=part.name %} The available stock for {{ part }} has fallen below the configured minimum level{% endblocktrans %}</p> 
+            {% if link %}
+            <p>{% trans "Click on the following link to view this part" %}: <a href="{{ link }}">{{ link }}</a></p>
+            {% endif %}
+        </th>
+    </tr>
+
+    <tr style="height: 3rem; border-bottom: 1px solid">
+        <th>{% trans "Part Name" %}</th>
+        <th>{% trans "Available Quantity" %}</th>
+        <th>{% trans "Minimum Quantity" %}</th>
+    </tr>
+
+    <tr style="height: 3rem">
+        <td style="text-align: center;">{{ part.full_name }}</td>
+        <td style="text-align: center;">{{ part.total_stock }}</td>
+        <td style="text-align: center;">{{ part.minimum_stock }}</td>
+    </tr>
+
+    <tr style="background-color: aliceblue;height: 4rem;">
+        <td colspan="3" style="padding-top:1rem; text-align: center">
+            <p><em>{% blocktrans with part=part.name %}You are receiving this email because you are subscribed to notifications for this part {% endblocktrans %}.</em></p>
+            <p><em><small>{% trans "InvenTree version" %}: {% inventree_version %}</small></em></p>
+        </td>
+    </tr>
+
+</table>
+