chore: move package.json to plugin root

plugins/websocket/guest-js/tsconfig.json

@@ -1 +0,0 @@
-../../../shared/tsconfig.json

plugins/websocket/rollup.config.mjs

@@ -1,8 +1,9 @@
 import { readFileSync } from "fs";
 
-import { createConfig } from "../../../shared/rollup.config.mjs";
+import { createConfig } from "../../shared/rollup.config.mjs";
 
 export default createConfig({
+  input: 'guest-js/index.ts',
   pkg: JSON.parse(
     readFileSync(new URL("./package.json", import.meta.url), "utf8")
   ),

plugins/websocket/tsconfig.json

@@ -0,0 +1 @@
+../../shared/tsconfig.json