fix(deps): migrate to next 14

Signed-off-by: Tilman Vatteroth <git@tilmanvatteroth.de>

frontend/package.json

@@ -99,7 +99,7 @@
     "markdown-it-sub": "2.0.0",
     "markdown-it-sup": "2.0.0",
     "mermaid": "10.6.1",
-    "next": "13.4.19",
+    "next": "14.0.4",
     "picocolors": "1.0.0",
     "react": "18.2.0",
     "react-bootstrap": "2.9.1",
@@ -126,7 +126,7 @@
     "yjs": "13.6.10"
   },
   "devDependencies": {
-    "@next/bundle-analyzer": "13.4.19",
+    "@next/bundle-analyzer": "14.0.4",
     "@testing-library/cypress": "10.0.1",
     "@testing-library/dom": "9.3.3",
     "@testing-library/jest-dom": "6.1.5",
@@ -156,7 +156,7 @@
     "cypress-fill-command": "1.0.2",
     "dotenv-cli": "7.3.0",
     "eslint": "8.55.0",
-    "eslint-config-next": "13.5.6",
+    "eslint-config-next": "14.0.4",
     "eslint-config-prettier": "9.1.0",
     "eslint-plugin-chai-friendly": "0.7.2",
     "eslint-plugin-cypress": "2.15.1",

frontend/src/app/(editor)/layout.tsx

@@ -13,7 +13,7 @@ import { UiNotificationBoundary } from '../../components/notifications/ui-notifi
 import { StoreProvider } from '../../redux/store-provider'
 import { baseUrlFromEnvExtractor } from '../../utils/base-url-from-env-extractor'
 import { configureLuxon } from '../../utils/configure-luxon'
-import type { Metadata } from 'next'
+import type { Metadata, Viewport } from 'next'
 import type { PropsWithChildren } from 'react'
 import React from 'react'
 import { getConfig } from '../../api/config'
@@ -64,13 +64,17 @@ export default async function RootLayout({ children, appBar }: RootLayoutProps)
 }
 
 export const metadata: Metadata = {
-  themeColor: '#b51f08',
   applicationName: 'HedgeDoc',
   appleWebApp: {
     title: 'HedgeDoc'
   },
   description: 'HedgeDoc - Ideas grow better together',
-  viewport: 'width=device-width, initial-scale=1',
   title: 'HedgeDoc',
   manifest: '/icons/site.webmanifest'
 }
+
+export const viewport: Viewport = {
+  themeColor: '#b51f08',
+  width: 'device-width',
+  initialScale: 1
+}