chore(nx): remove leftover Nx wrapper artifacts (#17916)

#17147 removed the root ./nx script, but wrapper-mode artifacts were
still present (installation in
[nx.json](https://github.com/twentyhq/twenty/blob/main/nx.json) and
tracked
[nxw.js](https://github.com/twentyhq/twenty/blob/main/.nx/nxw.js),
leaving an inconsistent setup.

This PR completes that cleanup by:

- removing installation from nx.json
- deleting tracked nxw.js
- ignoring nxw.js to prevent accidental re-introduction

Validated that Nx still works via yarn nx / npx nx.

.gitignore

@@ -10,6 +10,7 @@
 .nx/installation
 .nx/cache
 .nx/workspace-data
+.nx/nxw.js
 
 .pnp.*
 .yarn/*

.nx/nxw.js

@@ -1,115 +0,0 @@
-"use strict";
-// This file should be committed to your repository! It wraps Nx and ensures
-// that your local installation matches nx.json.
-// See: https://nx.dev/recipes/installation/install-non-javascript for more info.
-
-
-
-
-Object.defineProperty(exports, "__esModule", { value: true });
-const fs = require('fs');
-const path = require('path');
-const cp = require('child_process');
-const installationPath = path.join(__dirname, 'installation', 'package.json');
-function matchesCurrentNxInstall(currentInstallation, nxJsonInstallation) {
-    if (!currentInstallation.devDependencies ||
-        !Object.keys(currentInstallation.devDependencies).length) {
-        return false;
-    }
-    try {
-        if (currentInstallation.devDependencies['nx'] !==
-            nxJsonInstallation.version ||
-            require(path.join(path.dirname(installationPath), 'node_modules', 'nx', 'package.json')).version !== nxJsonInstallation.version) {
-            return false;
-        }
-        for (const [plugin, desiredVersion] of Object.entries(nxJsonInstallation.plugins || {})) {
-            if (currentInstallation.devDependencies[plugin] !== desiredVersion) {
-                return false;
-            }
-        }
-        return true;
-    }
-    catch {
-        return false;
-    }
-}
-function ensureDir(p) {
-    if (!fs.existsSync(p)) {
-        fs.mkdirSync(p, { recursive: true });
-    }
-}
-function getCurrentInstallation() {
-    try {
-        return require(installationPath);
-    }
-    catch {
-        return {
-            name: 'nx-installation',
-            version: '0.0.0',
-            devDependencies: {},
-        };
-    }
-}
-function performInstallation(currentInstallation, nxJson) {
-    fs.writeFileSync(installationPath, JSON.stringify({
-        name: 'nx-installation',
-        devDependencies: {
-            nx: nxJson.installation.version,
-            ...nxJson.installation.plugins,
-        },
-    }));
-    try {
-        cp.execSync('npm i', {
-            cwd: path.dirname(installationPath),
-            stdio: 'inherit',
-        });
-    }
-    catch (e) {
-        // revert possible changes to the current installation
-        fs.writeFileSync(installationPath, JSON.stringify(currentInstallation));
-        // rethrow
-        throw e;
-    }
-}
-function ensureUpToDateInstallation() {
-    const nxJsonPath = path.join(__dirname, '..', 'nx.json');
-    let nxJson;
-    try {
-        nxJson = require(nxJsonPath);
-        if (!nxJson.installation) {
-            console.error('[NX]: The "installation" entry in the "nx.json" file is required when running the nx wrapper. See https://nx.dev/recipes/installation/install-non-javascript');
-            process.exit(1);
-        }
-    }
-    catch {
-        console.error('[NX]: The "nx.json" file is required when running the nx wrapper. See https://nx.dev/recipes/installation/install-non-javascript');
-        process.exit(1);
-    }
-    try {
-        ensureDir(path.join(__dirname, 'installation'));
-        const currentInstallation = getCurrentInstallation();
-        if (!matchesCurrentNxInstall(currentInstallation, nxJson.installation)) {
-            performInstallation(currentInstallation, nxJson);
-        }
-    }
-    catch (e) {
-        const messageLines = [
-            '[NX]: Nx wrapper failed to synchronize installation.',
-        ];
-        if (e instanceof Error) {
-            messageLines.push('');
-            messageLines.push(e.message);
-            messageLines.push(e.stack);
-        }
-        else {
-            messageLines.push(e.toString());
-        }
-        console.error(messageLines.join('\n'));
-        process.exit(1);
-    }
-}
-if (!process.env.NX_WRAPPER_SKIP_INSTALL) {
-    ensureUpToDateInstallation();
-}
-
-require('./installation/node_modules/nx/bin/nx');

nx.json

@@ -272,9 +272,6 @@
       "inputs": ["default", "^default"]
     }
   },
-  "installation": {
-    "version": "22.3.3"
-  },
   "generators": {
     "@nx/react": {
       "application": {