Implement IndexedDB document auto-save (#422)

* removed all use of document indicies

* -add u64 support for wasm bridge

* fixed rust formating

* Cleaned up FrontendDocumentState in js-messages

* Tiny tweaks from code review

* - moved more of closeDocumentWithConfirmation to rust
- updated serde_wasm_bindgen to add feature flag

* working initial auto save impl

* auto save is a lifetime file

* - cargo fmt
- fixc error message
- move document version constant

* code review round 1

* generate seed for uuid in js when wasm is initialized

* Resolve PR feedback

* Further address PR feedback

* Fix failing test

Co-authored-by: Keavon Chambers <keavon@keavon.com>
Co-authored-by: otdavies <oliver@psyfer.io>

frontend/src/state/wasm-loader.ts

@@ -10,7 +10,12 @@ let wasmImport: WasmInstance | null = null;
 export async function initWasm() {
 	if (wasmImport !== null) return;
 
-	wasmImport = await import("@/../wasm/pkg").then(panicProxy);
+	// Separating in two lines satisfies typescript when used below
+	const importedWasm = await import("@/../wasm/pkg").then(panicProxy);
+	wasmImport = importedWasm;
+
+	const randomSeed = BigInt(Math.floor(Math.random() * Number.MAX_SAFE_INTEGER));
+	importedWasm.set_random_seed(randomSeed);
 }
 
 // This works by proxying every function call wrapping a try-catch block to filter out redundant and confusing