Add banner with link to Vizro GitHub repo

Add banner with link to the Vizro GitHub repo.

app.py

@@ -7,7 +7,8 @@ import pandas as pd
 import plotly.graph_objects as go
 import vizro.models as vm
 import vizro.plotly.express as px
-from dash import dash_table, html
+from dash import dash_table, html, get_asset_url
+import dash_bootstrap_components as dbc
 from vizro import Vizro
 from vizro.actions import export_data, filter_interaction
 from vizro.models.types import capture
@@ -682,6 +683,21 @@ dashboard = vm.Dashboard(
 )
 
 app = Vizro().build(dashboard)
+app.dash.layout.children.append(
+    html.Div(
+        [
+            html.Div(
+                [
+                    "Made using ",
+                    html.Img(src=get_asset_url("logo.svg"), id="banner", alt="Vizro logo"),
+                    dbc.NavLink("vizro", href="https://github.com/mckinsey/vizro", target="_blank", external_link=True),
+                ],
+                className="anchor-div",
+            ),
+        ],
+        className="anchor-container",
+    )
+)
 server = app.dash.server
 
 if __name__ == "__main__":