fix: configure Vite to handle matrix-js-sdk WASM crypto module

vite.config.ts

@@ -10,6 +10,13 @@ export default defineConfig({
 		sveltekit(),
 		paraglideVitePlugin({ project: './project.inlang', outdir: './src/lib/paraglide' })
 	],
+	optimizeDeps: {
+		exclude: ['@matrix-org/matrix-sdk-crypto-wasm']
+	},
+	ssr: {
+		noExternal: [],
+		external: ['@matrix-org/matrix-sdk-crypto-wasm']
+	},
 	server: {
 		watch: {
 			// Reduce file-watcher overhead on Windows — ignore heavy dirs