fix(web-extension): Fix types in vite config (#108)

Author: billyvg

packages/web-extension/vite.config.ts

@@ -1,9 +1,4 @@
-import {
-  defineConfig,
-  LibraryFormats,
-  LibraryOptions,
-  PluginOption,
-} from 'vite';
+import { defineConfig, LibraryFormats, PluginOption } from 'vite';
 import webExtension, { readJsonFile } from 'vite-plugin-web-extension';
 import zip from 'vite-plugin-zip-pack';
 import * as path from 'path';
@@ -17,9 +12,8 @@ function useSpecialFormat(
   return {
     name: 'use-special-format',
     config(config) {
-      const shouldUse = entriesToUse.includes(
-        (config.build?.lib as LibraryOptions)?.entry,
-      );
+      const shouldUse =
+        config.build?.lib && entriesToUse.includes(config.build.lib.entry);
       if (shouldUse) {
         config.build = config.build ?? {};
         // @ts-expect-error: lib needs to be an object, forcing it.