feat: Upgrade nx (#270)

BREAKING CHANGE: Updated Nx to 19

Notes:
* `nx` upgrade from 18.3.3 to 19.0.3;
* no `nx` migrations were needed;
* updated `yarn.lock`;
* changed `test` script in `package.json` to run all tests;
* all tests are passing after upgrade.

Reason of opening:
I keep getting unmet dependencies when trying to upgrade to newest `nx`:
```
 WARN  Issues with peer dependencies found
.
└─┬ @nx-extend/shadcn-ui 1.1.0
  └─┬ @nx/devkit 18.0.2
    ├── ✕ unmet peer nx@">= 16 <= 18": found 19.0.3
    └─┬ @nrwl/devkit 18.0.2
      └─┬ @nx/devkit 18.0.2
        └── ✕ unmet peer nx@">= 16 <= 18": found 19.0.3

```

package.json

@@ -28,13 +28,13 @@
     "nx": "nx",
     "nx:update": "nx migrate latest",
     "start": "nx serve",
-    "test": "nx test",
+    "test": "nx run-many --all -t test",
     "workspace-generator": "nx workspace-generator"
   },
   "dependencies": {
     "@actions/core": "^1.10.1",
-    "@nx/devkit": "18.3.3",
-    "@nx/workspace": "18.3.3",
+    "@nx/devkit": "19.0.3",
+    "@nx/workspace": "19.0.3",
     "@types/tar": "^6.1.13",
     "axios": "^1.6.8",
     "crypto-js": "^4.2.0",
@@ -49,13 +49,13 @@
     "@google-cloud/storage": "^7.10.1",
     "@jamesives/github-pages-deploy-action": "^4.6.0",
     "@jscutlery/semver": "^5.2.2",
-    "@nx/eslint-plugin": "18.3.3",
-    "@nx/jest": "18.3.3",
-    "@nx/js": "18.3.3",
-    "@nx/node": "18.3.3",
-    "@nx/plugin": "18.3.3",
-    "@nx/react": "18.3.3",
-    "@nx/webpack": "18.3.3",
+    "@nx/eslint-plugin": "19.0.3",
+    "@nx/jest": "19.0.3",
+    "@nx/js": "19.0.3",
+    "@nx/node": "19.0.3",
+    "@nx/plugin": "19.0.3",
+    "@nx/react": "19.0.3",
+    "@nx/webpack": "19.0.3",
     "@swc-node/register": "1.8.0",
     "@swc/core": "1.5.0",
     "@types/jest": "29.5.12",
@@ -73,7 +73,7 @@
     "husky": "^9.0.11",
     "jest": "29.7.0",
     "jest-environment-jsdom": "29.7.0",
-    "nx": "18.3.3",
+    "nx": "19.0.3",
     "prettier": "3.2.5",
     "ts-jest": "29.1.2",
     "ts-node": "10.9.2",