feat: added template to forum post form page

widget_group_17/forum/templates/forum/add.html

+{% extends "base.html" %}
+
+{% block page-title %}New Forum Post{% endblock %}
+
+{% block content %}
+<div style = "position: relative; left:80px; top:30px;">
+    <h1>NEW FORUM POST</h1>
+</div>
+<div style = "position: relative; left:80px; top:30px;">
+    <form method="POST" action ="{% url 'homepage:add' %}" enctype="multipart/form-data">
+        {% csrf_token %}
+        {{ user_form.as_p }}
+        <button class="button" type="Save Post">Save Post</button>
+        <button onclick="location.href = '/forum'">Return to Forum Posts</button>
+    </form>
+</div>
+{% endblock %}
\ No newline at end of file