FRE-600: Fix code review blockers

- Consolidated duplicate UndoManagers to single instance
- Fixed connection promise to only resolve on 'connected' status
- Fixed WebSocketProvider import (WebsocketProvider)
- Added proper doc.destroy() cleanup
- Renamed isPresenceInitialized property to avoid conflict

Co-Authored-By: Paperclip <noreply@paperclip.ing>

node_modules/superstruct/dist/structs/coercions.d.ts

@@ -0,0 +1,29 @@
+import { Struct, Coercer } from '../struct.js';
+/**
+ * Augment a `Struct` to add an additional coercion step to its input.
+ *
+ * This allows you to transform input data before validating it, to increase the
+ * likelihood that it passes validation—for example for default values, parsing
+ * different formats, etc.
+ *
+ * Note: You must use `create(value, Struct)` on the value to have the coercion
+ * take effect! Using simply `assert()` or `is()` will not use coercion.
+ */
+export declare function coerce<T, S, C>(struct: Struct<T, S>, condition: Struct<C, any>, coercer: Coercer<C>): Struct<T, S>;
+/**
+ * Augment a struct to replace `undefined` values with a default.
+ *
+ * Note: You must use `create(value, Struct)` on the value to have the coercion
+ * take effect! Using simply `assert()` or `is()` will not use coercion.
+ */
+export declare function defaulted<T, S>(struct: Struct<T, S>, fallback: any, options?: {
+    strict?: boolean;
+}): Struct<T, S>;
+/**
+ * Augment a struct to trim string inputs.
+ *
+ * Note: You must use `create(value, Struct)` on the value to have the coercion
+ * take effect! Using simply `assert()` or `is()` will not use coercion.
+ */
+export declare function trimmed<T, S>(struct: Struct<T, S>): Struct<T, S>;
+//# sourceMappingURL=coercions.d.ts.map