Add new admin blueprint with new user delete feature. Reorganize templates etc.

app/templates/admin/admin.html.j2

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+{% extends "base.html.j2" %}
+
+{% block page_content %}
+<div class="col s12">
+  <div class="card large">
+    <div class="card-content">
+      <span class="card-title">User list</span>
+      <div id="users">
+        <div class="input-field">
+          <i class="material-icons prefix">search</i>
+          <input id="search-corpus" class="search" type="text"></input>
+          <label for="search-corpus">Search users</label>
+        </div>
+        {{ table }}
+        <ul class="pagination"></ul>
+      </div>
+    </div>
+  </div>
+</div>
+<script type="text/javascript">
+var options = {
+  valueNames: ['username', 'email', 'role', 'confirmed'],
+  page: 3,
+  pagination: true
+};
+var userList = new List('users', options);
+</script>
+{% endblock %}

app/templates/admin/admin_user_page.html.j2

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+{% extends "base.html.j2" %}
+
+{% block page_content %}
+<div class="col s12 m6">
+  <div class="card large">
+    <div class="card-content">
+      <span class="card-title">User information</span>
+    </div>
+  </div>
+</div>
+<div class="col s12 m6">
+  <div class="card large">
+    <div class="card-content">
+      <span class="card-title">User Jobs</span>
+      <div id="users">
+        <div class="input-field">
+          <i class="material-icons prefix">search</i>
+          <input id="search-corpus" class="search" type="text"></input>
+          <label for="search-corpus">Search users</label>
+        </div>
+        <div class="collection list">
+          {% for job in selected_user.jobs.all() %}
+            {% if job.service == 'nlp' %}
+              {% set service_color = 'blue' %}
+              {% set service_icon = 'format_textdirection_l_to_r' %}
+            {% elif job.service =='ocr' %}
+              {% set service_color = 'green' %}
+              {% set service_icon = 'find_in_page' %}
+            {% else %}
+              {% set service_color = 'red' %}
+              {% set service_icon = 'help' %}
+            {% endif %}
+            {% if job.status == 'pending' %}
+              {% set badge_color = 'amber' %}
+            {% elif job.status =='running' %}
+              {% set badge_color = 'indigo' %}
+            {% elif job.status =='complete' %}
+              {% set badge_color = 'teal' %}
+            {% else %}
+              {% set badge_color = 'red' %}
+            {% endif %}
+            <a href="{{ url_for('main.job', job_id=job.id) }}" class="collection-item avatar">
+                <i class="material-icons circle {{ service_color }}">{{ service_icon }}</i>
+                <span class="new badge {{ badge_color }}" data-badge-caption="">{{ job.status }}</span>
+                <span class="title">{{ job.title }}</span>
+                <p>{{ job.description }}</p>
+            </a>
+          {% endfor %}
+        </div>
+        <ul class="pagination"></ul>
+      </div>
+    </div>
+  </div>
+</div>
+<div class="col s12">
+  <div class="card large">
+    <div class="card-content">
+      <span class="card-title">Administration actions</span>
+      <!-- Confirm deletion of selected user with modal dialogue
+    Modal Trigger-->
+      <a href="#modal-confirm-delete" class="waves-effect waves-light btn modal-trigger"><i class="material-icons left">delete</i>Delete User</a>
+      <!-- Modal Strucutre -->
+      <div id="modal-confirm-delete" class="modal">
+        <div class="modal-content">
+          <h4>Confirm deletion</h4>
+            <p>Do you really want to delete the current selected user ({{selected_user.username}})?</p>
+        </div>
+        <div class="modal-footer">
+          <a href="{{url_for('admin.admin_delete_user', user_id=selected_user.id)}}" class="modal-close waves-effect waves-green btn red"><i class="material-icons left">delete</i>Delete User</a></a>
+        </div>
+      </div>
+    </div>
+  </div>
+</div>
+{% endblock %}