feat: implement environments for selfhosted (#30)

packages/hoppscotch-selfhost-web/src/main.ts

@@ -1,6 +1,10 @@
 import { createHoppApp } from "@hoppscotch/common"
 import { def as authDef } from "./platform/auth"
+import { def as environmentsDef } from "./platform/environments/environments.platform"
 
 createHoppApp("#app", {
   auth: authDef,
+  sync: {
+    environments: environmentsDef,
+  },
 })