Feature/enforce license notice in each file via eslint rule (#304)

* [ESLint] Add "eslint-plugin-header" as dev dependency

* [ESLint::eslint-plugin-header] Setup rule

* [ESLint::eslint-plugin-header] Fix errors

src/components/util/CustomExtensionOutlinedIcon.tsx

@@ -1,3 +1,11 @@
+/*
+ * Copyright (C) Contributors to the Suwayomi project
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
 import React from 'react';
 import createSvgIcon from '@mui/material/utils/createSvgIcon';
 

src/components/util/EmptyView.tsx

@@ -3,7 +3,9 @@
  *
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
 // adopted from: https://github.com/tachiyomiorg/tachiyomi/blob/master/app/src/main/java/eu/kanade/tachiyomi/widget/EmptyView.kt
 
 import React, { useMemo } from 'react';

src/components/util/ListItemLink.tsx

@@ -3,7 +3,8 @@
  *
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
 
 import React from 'react';
 import ListItem, { ListItemProps } from '@mui/material/ListItem';

src/components/util/LoadingPlaceholder.tsx

@@ -3,7 +3,8 @@
  *
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
 
 import React from 'react';
 import CircularProgress from '@mui/material/CircularProgress';

src/components/util/SpinnerImage.tsx

@@ -3,7 +3,8 @@
  *
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
 
 import React, { useEffect, useState, CSSProperties } from 'react';
 import CircularProgress from '@mui/material/CircularProgress';

src/components/util/StyledFab.tsx

@@ -1,3 +1,11 @@
+/*
+ * Copyright (C) Contributors to the Suwayomi project
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
 import { Fab } from '@mui/material';
 import { styled } from '@mui/system';
 

src/components/util/TabPanel.tsx

@@ -3,7 +3,8 @@
  *
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
 
 import React from 'react';
 

src/components/util/Toast.tsx

@@ -3,7 +3,8 @@
  *
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
 
 import ReactDOM from 'react-dom';
 import React from 'react';