Added working WTForm to get URL at /downloader

templates/downloader.html

@@ -1,17 +1,15 @@
 {%- extends "base.html" %}
 
-{% import "bootstrap/utils.html" as utils %}
-
 {% block content %}
     <div class="container">
-        {%- with messages = get_flashed_messages(with_categories=True)  %}
-            {%- if messages %}
-                <div class="row">
-                    <div class="col-md-12">
-                        {{utils.flashed_messages(messages)}}
-                    </div>
-                </div>
-            {%- endif  %}
-        {%- endwith  %}
+        <form method="POST">
+            {{ form.csrf_token }}
+            <label for="url">Video, Channel or Playlist</label> <br>
+            <input id="url" name="url" required type="url" placeholder="YouTube Link">
+            <input type="submit" value="Go">
+        </form>
+        {% if form.errors %}
+        {{ form.errors['url'][0][:-1] + ', try again.' }}
+        {% endif %}
     </div>
 {%- endblock %}