rozbicie na moduły, poprawki i komendy cli

zbiorka_app/templates/error.html

@@ -0,0 +1,21 @@
+{% extends "base.html" %}
+
+{% block title %}{{ error_code }} {{ error_name }}{% endblock %}
+
+{% block content %}
+<div class="row justify-content-center py-5">
+    <div class="col-12 col-md-10 col-lg-8">
+        <div class="card border-warning shadow-sm">
+            <div class="card-body p-4 p-md-5 text-center">
+                <div class="display-4 fw-bold mb-3">{{ error_code }}</div>
+                <h1 class="h3 mb-3">{{ error_name }}</h1>
+                <p class="lead mb-4">{{ error_message }}</p>
+                <div class="d-flex gap-2 justify-content-center flex-wrap">
+                    <a href="{{ url_for('index') }}" class="btn btn-primary">Wroc na strone glowna</a>
+                    <a href="javascript:history.back()" class="btn btn-outline-light">Wroc</a>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>
+{% endblock %}