Fix TypeScript-based code completion in esbuild script

Code completion for esbuild.BuildOptions was not working in this
file because the name of the file (esbuild.js) shadowed the name of
the NPM package containing the types (esbuild).

Renaming the file fixes the code completion.

package.json

@@ -11,12 +11,12 @@
   "scripts": {
     "build:remix": "remix build && mv build/server/metafile.* build/",
     "build:sass": "sass -Inode_modules/nasawds/src/theme -Inode_modules/@uswds -Inode_modules/@uswds/uswds/packages app:app",
-    "build:esbuild": "node esbuild.js",
+    "build:esbuild": "node esbuild.config.js",
     "build:website": "run-s build:sass build:remix",
     "build": "run-p build:website build:esbuild",
     "dev:remix": "remix dev --manual -c \"arc sandbox -e testing --host localhost\"",
     "dev:sass": "sass --watch -Inode_modules/nasawds/src/theme -Inode_modules/@uswds -Inode_modules/@uswds/uswds/packages app:app",
-    "dev:esbuild": "node esbuild.js --dev",
+    "dev:esbuild": "node esbuild.config.js --dev",
     "dev": "run-p \"dev:*\"",
     "prepare": "husky",
     "deploy": "arc deploy --prune --production",