fix: ESM exports for solid-query

Author: oliverbutler

.changeset/purple-turkeys-relax.md

@@ -0,0 +1,5 @@
+---
+'@ts-rest/solid-query': patch
+---
+
+Fix broken ESM module building for solid-query, was causing build errors with solid, especially solid-start

libs/ts-rest/solid-query/package.json

@@ -23,5 +23,16 @@
   "peerDependencies": {
     "zod": "3.x.x",
     "@tanstack/solid-query": "4.x.x"
-  }
+  },
+  "exports": {
+    ".": {
+      "import": "./index.js",
+      "require": "./index.cjs"
+    },
+    "./package.json": "./package.json"
+  },
+  "main": "index.cjs",
+  "module": "index.js",
+  "types": "./src/index.d.ts",
+  "type": "module"
 }