chore(deps): matrix-js-sdk 41.7 -> 44.0 (#201)

Picks up three releases of MatrixRTC / delayed-event fixes and
matrix-sdk-crypto-wasm 18.3.1 -> 18.9.0.

SDK 43 moved OAuth (MSC3861) into the SDK and dropped oidc-client-ts, so
the native-OAuth sign-in is ported:
- login discovers the auth server via /auth_metadata, registers with
  OAuth2.registerClient, and keeps the PKCE verifier + device in its own
  sessionStorage entry keyed by `state` (single use; CSRF check);
- refresh is done by the SDK (oauthClientId + onTokenRefresh); the #16
  cross-tab protection is kept by a narrow guard on refresh-token grants
  (the SDK calls the global fetch for OAuth, not fetchFn), which
  serialises them with a Web Lock and adopts a sibling tab's tokens;
- logout and forced logout revoke via mx.logout() (the SDK revokes at
  the auth server for OAuth sessions);
- the callback page parsed its params on every render, re-running the
  single-use code exchange in a loop; parsed once now.

Also: notification_type is deprecated in MSC4075 (ring in DMs, notify
elsewhere when omitted), _onRTCSessionMemberUpdate ->
ensureRecalculateSessionMembers, precache limit 6 -> 10 MB for the
7.8 MB crypto wasm.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017PCb59uY3UKqDqt7B6hzd5

src/app/pages/auth/login/Login.tsx

@@ -68,11 +68,7 @@ export function Login() {
         <Text as="h1" size="H2" priority="400">
           Login
         </Text>
-        <OidcLogin
-          issuer={oidc.issuer}
-          homeserverBaseUrl={discovery['m.homeserver'].base_url}
-          serverName={server}
-        />
+        <OidcLogin homeserverBaseUrl={discovery['m.homeserver'].base_url} serverName={server} />
         <span data-spacing-node />
         <Text align="Center">
           Do not have an account? <Link to={getRegisterPath(server)}>Register</Link>