fix: correct esModuleInterop imports and tsconfig for regex-validate

- Add esModuleInterop: true and composite: true to tsconfig.json
  (were missing from v1 branch)
- Fix generate-output.ts: import jsonexport/cli-table3 as default
  imports instead of namespace imports — with esModuleInterop, CJS
  default-export modules require `import X from 'X'` not
  `import * as X from 'X'` (fixes TS2349/TS2351/TS1259)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: cs-raj

packages/contentstack-cli-cm-regex-validate/src/utils/generate-output.ts

@@ -1,5 +1,5 @@
-import * as jsonexport from 'jsonexport'
-import * as Table from 'cli-table3'
+import jsonexport from 'jsonexport'
+import Table from 'cli-table3'
 import * as path from 'path'
 import * as fs from 'fs'
 import {cliux, sanitizePath} from '@contentstack/cli-utilities'

packages/contentstack-cli-cm-regex-validate/tsconfig.json

@@ -7,7 +7,9 @@
     "rootDir": "src",
     "strict": true,
     "target": "es2017",
-    "skipLibCheck": true
+    "skipLibCheck": true,
+    "esModuleInterop": true,
+    "composite": true
   },
   "include": [
     "src/**/*"