chore: add prepare stage to the package (#231)

Author: Lodin

package.json

@@ -13,7 +13,7 @@
     "build": "nx run-many -t build --all",
     "lint": "nx run-many -t lint --all",
     "test": "echo \"Error: no test specified\" && exit 1",
-    "prepare": "npm run build",
+    "prepare": "nx run-many -t prepare --all",
     "typecheck": "nx run-many -t typecheck --all"
   },
   "repository": {

ts/observability-kit-client/package.json

@@ -19,6 +19,7 @@
     "build:dts": "tsc -p tsconfig.build.json",
     "lint": "eslint src/**/*.ts",
     "postversion": "npm run build",
+    "prepare": "npm run build",
     "typecheck": "tsc --noEmit"
   },
   "exports": {