csv files supported tooltip display

app.py

@@ -127,21 +127,28 @@ app.layout = dmc.MantineProvider(
                                     [
                                         html.Div(
                                             [
-                                                dcc.Upload(
-                                                    id="upload-data",
-                                                    children=html.Button(
-                                                        "Choose file",
-                                                        className="pickBtn",
-                                                        type="button",
-                                                        style={
-                                                            "height": "40px",
-                                                            "padding": "0 20px",
-                                                            "minWidth": "120px",
-                                                            "fontFamily": "inherit"
-                                                        }
-                                                    ),
-                                                    accept=".csv",
-                                                    multiple=False
+                                                dmc.Tooltip(
+                                                    label="Only CSV files are supported",
+                                                    position="right",
+                                                    withArrow=True,
+                                                    children=[
+                                                        dcc.Upload(
+                                                            id="upload-data",
+                                                            children=html.Button(
+                                                                "Choose file",
+                                                                className="pickBtn",
+                                                                type="button",
+                                                                style={
+                                                                    "height": "40px",
+                                                                    "padding": "0 20px",
+                                                                    "minWidth": "120px",
+                                                                    "fontFamily": "inherit"
+                                                                }
+                                                            ),
+                                                            accept=".csv",
+                                                            multiple=False
+                                                        )
+                                                    ]
                                                 ),
                                                 html.Div(id="file-name-display", style={"fontSize": "12px", "color": "#475467", "marginTop": "8px"})
                                             ],