Revert changes in app so tests pass

vizro-core/examples/scratch_dev/app.py

@@ -1,38 +1,14 @@
 """Test app"""
 
-from dash import Dash, html, clientside_callback, Output, Input
-import dash_bootstrap_components as dbc
-import vizro
+import vizro.models as vm
+import vizro.plotly.express as px
+from vizro import Vizro
 
-app = Dash(__name__, external_stylesheets=[dbc.icons.FONT_AWESOME, vizro.bootstrap])
-
-color_mode_switch = html.Span(
-    [
-        dbc.Label(className="fa fa-moon", html_for="switch"),
-        dbc.Switch(id="switch", value=False, className="d-inline-block ms-1"),
-        dbc.Label(className="fa fa-sun", html_for="switch"),
-    ]
-)
-
-app.layout = dbc.Container(
-    [
-        html.H3(["Bootstrap Light Dark Color Modes Demo"], className="bg-primary p-2"),
-        color_mode_switch,
-    ]
+page = vm.Page(
+    title="foo", components=[vm.Graph(figure=px.scatter(data_frame=px.data.iris(), x="sepal_width", y="sepal_length"))]
 )
 
-clientside_callback(
-    """
-    (switchOn) => {
-       switchOn
-         ? document.documentElement.setAttribute('data-bs-theme', 'light')
-         : document.documentElement.setAttribute('data-bs-theme', 'dark')
-       return window.dash_clientside.no_update
-    }
-    """,
-    Output("switch", "id"),
-    Input("switch", "value"),
-)
+dashboard = vm.Dashboard(pages=[page])
 
 if __name__ == "__main__":
-    app.run_server(debug=True)
+    Vizro().build(dashboard).run()