examples: upgrade and fix typescript configuration files (#5310)

Author: RomainLanz

examples/pm2-typescript/nuxt.config.ts

@@ -1,4 +1,6 @@
-export default {
+import NuxtConfiguration from '@nuxt/config'
+
+const config: NuxtConfiguration = {
   hooks: {
     listen () {
       if (process.send) {
@@ -7,3 +9,5 @@ export default {
     }
   }
 }
+
+export default config

examples/typescript-eslint/nuxt.config.ts

@@ -1 +1,5 @@
-export default {}
+import NuxtConfiguration from '@nuxt/config'
+
+const config: NuxtConfiguration = {}
+
+export default config

examples/typescript-tsx/nuxt.config.ts

@@ -1,4 +1,6 @@
-export default {
+import NuxtConfiguration from '@nuxt/config'
+
+const config: NuxtConfiguration = {
   build: {
     loaders: {
       vueStyle: {
@@ -12,3 +14,5 @@ export default {
     }
   }
 }
+
+export default config

examples/typescript-vuex/nuxt.config.ts

@@ -1,4 +1,4 @@
-import NuxtConfiguration from '@nuxt/config-edge'
+import NuxtConfiguration from '@nuxt/config'
 
 const config: NuxtConfiguration = {
   head: {

examples/typescript/nuxt.config.ts

@@ -1,4 +1,4 @@
-import NuxtConfiguration from '@nuxt/config-edge'
+import NuxtConfiguration from '@nuxt/config'
 
 const config: NuxtConfiguration = {
   plugins: ['~/plugins/hello']