refactor(client): ts-migration of i18n/validate-keys.js (#44292)

* refactor - file extenstion change to .ts

* fix - imports syntax

* fix - migration complete

* fix - lint:prettier warn

* refactor - validate-keys in tools/scripts/lint/

* refactor - validate-keys.ts moved to tools/scripts/lint and added in tsconfig.json

* refactor - tsconfig.json file for tools

* fix - lint:ts script update and validate-keys.js added to .eslintignore

* fix - lint:prettier and ts compilation

* fix - ts compilation

* refactor - changes in .gitignore and validate-keys script

tools/scripts/build/tsconfig.json

@@ -1,6 +0,0 @@
-{
-  "compilerOptions": {
-    "typeRoots": ["../../node_modules/@types"],
-    "types": ["node"]
-  }
-}