feat: Upgrade to c12@2 so config is loaded as ESM (#1182)

Author: aklinker1

packages/wxt/package.json

@@ -85,7 +85,7 @@
     "@webext-core/match-patterns": "^1.0.3",
     "@wxt-dev/storage": "workspace:^1.0.0",
     "async-mutex": "^0.5.0",
-    "c12": "^1.11.2",
+    "c12": "^2.0.1",
     "cac": "^6.7.14",
     "chokidar": "^3.6.0",
     "ci-info": "^4.1.0",

packages/wxt/src/cli/index.ts

@@ -2,9 +2,6 @@ import cli from './commands';
 import { version } from '../version';
 import { isAliasedCommand } from './cli-utils';
 
-// TODO: Remove. See https://github.com/wxt-dev/wxt/issues/277
-process.env.VITE_CJS_IGNORE_WARNING = 'true';
-
 // Grab the command that we're trying to run
 cli.parse(process.argv, { run: false });
 

packages/wxt/src/core/resolve-config.ts

@@ -50,9 +50,6 @@ export async function resolveConfig(
       name: 'wxt',
       cwd: inlineConfig.root ?? process.cwd(),
       rcFile: false,
-      jitiOptions: {
-        esmResolve: true,
-      },
     });
     if (inlineConfig.configFile && metadata.layers?.length === 0) {
       throw Error(`Config file "${inlineConfig.configFile}" not found`);