fix: remove unnecessary async from vite config templates (#959)

Author: katayama8000

.changes/remove-unnecessary-async-from-vite-configs.md

@@ -0,0 +1,6 @@
+---
+"create-tauri-app": patch
+"create-tauri-app-js": patch
+---
+
+Remove unnecessary `async` keyword from `defineConfig` in Vite-based templates

templates/template-preact-ts/vite.config.ts.lte

@@ -5,7 +5,7 @@ import preact from "@preact/preset-vite";{% if v2 %}
 const host = process.env.TAURI_DEV_HOST;{% endif %}
 
 // https://vite.dev/config/
-export default defineConfig(async () => ({
+export default defineConfig(() => ({
   plugins: [preact()],
 
   // Vite options tailored for Tauri development and only applied in `tauri dev` or `tauri build`

templates/template-preact/vite.config.js.lte

@@ -4,7 +4,7 @@ import preact from "@preact/preset-vite";{% if v2 %}
 const host = process.env.TAURI_DEV_HOST;{% endif %}
 
 // https://vite.dev/config/
-export default defineConfig(async () => ({
+export default defineConfig(() => ({
   plugins: [preact()],
 
   // Vite options tailored for Tauri development and only applied in `tauri dev` or `tauri build`

templates/template-react-ts/vite.config.ts.lte

@@ -5,7 +5,7 @@ import react from "@vitejs/plugin-react";{% if v2 %}
 const host = process.env.TAURI_DEV_HOST;{% endif %}
 
 // https://vite.dev/config/
-export default defineConfig(async () => ({
+export default defineConfig(() => ({
   plugins: [react()],
 
   // Vite options tailored for Tauri development and only applied in `tauri dev` or `tauri build`

templates/template-react/vite.config.js.lte

@@ -4,7 +4,7 @@ import react from "@vitejs/plugin-react";{% if v2 %}
 const host = process.env.TAURI_DEV_HOST;{% endif %}
 
 // https://vite.dev/config/
-export default defineConfig(async () => ({
+export default defineConfig(() => ({
   plugins: [react()],
 
   // Vite options tailored for Tauri development and only applied in `tauri dev` or `tauri build`

templates/template-solid-ts/vite.config.ts.lte

@@ -5,7 +5,7 @@ import solid from "vite-plugin-solid";{% if v2 %}
 const host = process.env.TAURI_DEV_HOST;{% endif %}
 
 // https://vite.dev/config/
-export default defineConfig(async () => ({
+export default defineConfig(() => ({
   plugins: [solid()],
 
   // Vite options tailored for Tauri development and only applied in `tauri dev` or `tauri build`

templates/template-solid/vite.config.js.lte

@@ -4,7 +4,7 @@ import solid from "vite-plugin-solid";{% if v2 %}
 const host = process.env.TAURI_DEV_HOST;{% endif %}
 
 // https://vite.dev/config/
-export default defineConfig(async () => ({
+export default defineConfig(() => ({
   plugins: [solid()],
 
   // Vite options tailored for Tauri development and only applied in `tauri dev` or `tauri build`

templates/template-svelte-ts/vite.config.js.lte

@@ -5,7 +5,7 @@ import { sveltekit } from "@sveltejs/kit/vite";{% if v2 %}
 const host = process.env.TAURI_DEV_HOST;{% endif %}
 
 // https://vite.dev/config/
-export default defineConfig(async () => ({
+export default defineConfig(() => ({
   plugins: [sveltekit()],
 
   // Vite options tailored for Tauri development and only applied in `tauri dev` or `tauri build`

templates/template-svelte/vite.config.js.lte

@@ -5,7 +5,7 @@ import { sveltekit } from "@sveltejs/kit/vite";{% if v2 %}
 const host = process.env.TAURI_DEV_HOST;{% endif %}
 
 // https://vite.dev/config/
-export default defineConfig(async () => ({
+export default defineConfig(() => ({
   plugins: [sveltekit()],
 
   // Vite options tailored for Tauri development and only applied in `tauri dev` or `tauri build`

templates/template-vanilla-ts/vite.config.ts.lte

@@ -4,7 +4,7 @@ import { defineConfig } from "vite";{% if v2 %}
 const host = process.env.TAURI_DEV_HOST;{% endif %}
 
 // https://vite.dev/config/
-export default defineConfig(async () => ({
+export default defineConfig(() => ({
 
   // Vite options tailored for Tauri development and only applied in `tauri dev` or `tauri build`
   //