Added archive view, label editing

Archives can now be viewed, a cover can optionally be inserted into the covers directory.
Labels can now be edited.

flask/templates/view.html

@@ -0,0 +1,25 @@
+{% extends "base.html" %}
+
+{% block meta %}
+<link rel="stylesheet" href="/static/view.css" />
+{% endblock %}
+
+{% block content %}
+<h2>{{archive[1]}}</h2>
+<div class="grid-container">
+    <div class="archive-info">
+        <b>Hash: </b><span>{{archive[2]}}</span>
+        <b>Owner: </b><a href="/user/{{archive[-2]}}">{{archive[-1]}}</a>
+        <b>Category: </b><span>{{category[4]}}/{{category[1]}}</span>
+        <b>Imported: </b><span>{{archive[4]|ctime}}</span>
+        <b>Size: </b><span>{{archive[4]|spacer}}</span>
+        <b>Labels: {% if login and userdata[0] == archive[8] %}<a href="/labels/{{archive[0]}}">Edit</a>{% endif %}</b>
+        <div>
+            {% for lab in labels %}
+            <div class="label">{{lab[0]}}</div>
+            {% endfor %}
+        </div>
+    </div>
+    <img id="cover" src="/static/covers/{{archive[0]}}.webp" onerror="this.onerror=null; this.src='/static/covers/default.webp'" alt="Cover image">
+</div>
+{% endblock %}