add copyright header

Author: clarasb

chartlets.js/packages/demo/src/App.tsx

@@ -1,3 +1,9 @@
+/*
+ * Copyright (c) 2019-2026 by Brockmann Consult Development team
+ * Permissions are hereby granted under the terms of the MIT License:
+ * https://opensource.org/licenses/MIT.
+ */
+
 import { useMemo } from "react";
 import {
   CssBaseline,

chartlets.js/packages/demo/src/actions/hidePanel.ts

@@ -1,3 +1,9 @@
+/*
+ * Copyright (c) 2019-2026 by Brockmann Consult Development team
+ * Permissions are hereby granted under the terms of the MIT License:
+ * https://opensource.org/licenses/MIT.
+ */
+
 import { updateContributionContainer } from "chartlets";
 import type { PanelState } from "@/types";
 

chartlets.js/packages/demo/src/actions/showPanel.ts

@@ -1,3 +1,9 @@
+/*
+ * Copyright (c) 2019-2026 by Brockmann Consult Development team
+ * Permissions are hereby granted under the terms of the MIT License:
+ * https://opensource.org/licenses/MIT.
+ */
+
 import { updateContributionContainer } from "chartlets";
 
 import type { PanelState } from "@/types";

chartlets.js/packages/demo/src/components/ControlBar.tsx

@@ -1,3 +1,9 @@
+/*
+ * Copyright (c) 2019-2026 by Brockmann Consult Development team
+ * Permissions are hereby granted under the terms of the MIT License:
+ * https://opensource.org/licenses/MIT.
+ */
+
 import FormControl from "@mui/material/FormControl";
 import InputLabel from "@mui/material/InputLabel";
 import Select from "@mui/material/Select";

chartlets.js/packages/demo/src/components/ExtensionInfo.tsx

@@ -1,3 +1,9 @@
+/*
+ * Copyright (c) 2019-2026 by Brockmann Consult Development team
+ * Permissions are hereby granted under the terms of the MIT License:
+ * https://opensource.org/licenses/MIT.
+ */
+
 import Typography from "@mui/material/Typography";
 
 import { useExtensions, useContributionsResult } from "chartlets";

chartlets.js/packages/demo/src/components/Header.tsx

@@ -1,3 +1,9 @@
+/*
+ * Copyright (c) 2019-2026 by Brockmann Consult Development team
+ * Permissions are hereby granted under the terms of the MIT License:
+ * https://opensource.org/licenses/MIT.
+ */
+
 import Box from "@mui/material/Box";
 import Button from "@mui/material/Button";
 import Typography from "@mui/material/Typography";

chartlets.js/packages/demo/src/components/Panel.tsx

@@ -1,3 +1,9 @@
+/*
+ * Copyright (c) 2019-2026 by Brockmann Consult Development team
+ * Permissions are hereby granted under the terms of the MIT License:
+ * https://opensource.org/licenses/MIT.
+ */
+
 import type { CSSProperties, ReactElement } from "react";
 import CircularProgress from "@mui/material/CircularProgress";
 import { Component } from "chartlets";

chartlets.js/packages/demo/src/components/PanelsControl.tsx

@@ -1,3 +1,9 @@
+/*
+ * Copyright (c) 2019-2026 by Brockmann Consult Development team
+ * Permissions are hereby granted under the terms of the MIT License:
+ * https://opensource.org/licenses/MIT.
+ */
+
 import Checkbox from "@mui/material/Checkbox";
 import FormControlLabel from "@mui/material/FormControlLabel";
 import FormGroup from "@mui/material/FormGroup";

chartlets.js/packages/demo/src/components/PanelsRow.tsx

@@ -1,3 +1,9 @@
+/*
+ * Copyright (c) 2019-2026 by Brockmann Consult Development team
+ * Permissions are hereby granted under the terms of the MIT License:
+ * https://opensource.org/licenses/MIT.
+ */
+
 import type { PanelState } from "@/types";
 
 import { useComponentChangeHandlers, useContributions } from "chartlets";

chartlets.js/packages/demo/src/main.tsx

@@ -1,3 +1,9 @@
+/*
+ * Copyright (c) 2019-2026 by Brockmann Consult Development team
+ * Permissions are hereby granted under the terms of the MIT License:
+ * https://opensource.org/licenses/MIT.
+ */
+
 import React from "react";
 import ReactDOM from "react-dom/client";