Feature/batch chapter download (#191)

* Add NavbarToolbar component for rendering items in toolbar through portal

* Refactor Manga screen, move chapters filtering to toolbar menu, cleanup ChapterOptions

* Fix warning

* Update layout of ChapterList and add selection for chapters, add batch download, move stuff around

* Add space to bookmark icon

* Clear actions when leaving source mangas page

* Move bookmark icon back inline and align it correctly with text

* Fixup MangaDetails buttons to update cache properly so buttons in manga menu are updated

* Move chapters filter to ChapterList

* Fixup error display overlapping with loaded content when revalidation fails

* Fixup spacing around ChapterList title

* Only show small progress if manga is loaded so there is not to many spinners

* Prevent title wrapping

* Add icon buttons to desktop sizes of manga toolbar menu

src/components/util/helpers.ts

@@ -0,0 +1,14 @@
+/*
+ * 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/. */
+
+// eslint-disable-next-line import/prefer-default-export
+export const pluralize = (count: number, input: string | { one: string, many: string }) => {
+    if (typeof input === 'string') {
+        return `${input}${count === 1 ? '' : 's'}`;
+    }
+    return input[count === 1 ? 'one' : 'many'];
+};