Delete unused Jinja macros and rearrange templates.

Templates and fragments that relate to specific resources (portfolios,
applications, task orders) should reside in directories named for the
relevant resource. This also matches the way the application routes are
distributed among modules named for each resource type.

templates/applications/new/step_1.html

@@ -0,0 +1,51 @@
+{% extends "applications/base.html" %}
+
+{% from "components/alert.html" import Alert %}
+{% from "components/text_input.html" import TextInput %}
+{% from 'components/save_button.html' import SaveButton %}
+
+{% set secondary_breadcrumb = 'portfolios.applications.new_application_title' | translate %}
+
+  {% if application_id %}
+    {% set action = url_for('applications.update_new_application_step_1', portfolio_id=portfolio.id, application_id=application_id) %}
+  {% else %}
+    {% set action = url_for('applications.create_new_application_step_1', portfolio_id=portfolio.id, application_id=application_id) %}
+  {% endif %}
+
+
+{% block application_content %}
+
+  {% include "fragments/flash.html" %}
+
+  <div class='subheading'>{{ 'portfolios.applications.settings_heading' | translate }}</div>
+
+  <application-name-and-description inline-template v-bind:initial-data='{{ form.data|tojson }}'>
+    <form method="POST" action="{{ action }}" v-on:submit="handleSubmit">
+      <div class="panel">
+        <div class="panel__content">
+          {{ form.csrf_token }}
+          <p>
+            {{ "fragments.edit_application_form.explain" | translate }}
+          </p>
+          <div class="form-row">
+            <div class="form-col form-col--two-thirds">
+              {{ TextInput(form.name, optional=False) }}
+            </div>
+          </div>
+          <div class="form-row">
+            <div class="form-col form-col--two-thirds">
+              {{ TextInput(form.description, paragraph=True, optional=False) }}
+            </div>
+          </div>
+        </div>
+      </div>
+
+        <span class="action-group">
+          {% block next_button %}
+            {{ SaveButton(text=('portfolios.applications.next_button_text' | translate)) }}
+          {% endblock %}
+        </span>
+    </form>
+  </application-name-and-description>
+
+{% endblock %}