Gitlab logout

[prasadtalasila]

The current codebase does not logout of gitlab. Does using oauth revoke API help?

[prasadtalasila]

Even the SessionStorage of the react website is not cleared. This needs to be cleared as well.

The following changes are needed:

1. Account.jsx - exporting the wrong react component
2. Authentication.ts - signOut needs to have the required signout functionality. The react-oidc-context package already has

export declare interface AuthContextProps extends AuthState {
    /**
     * UserManager functions. See [UserManager](https://github.com/authts/oidc-client-ts) for more details.
     */
    readonly settings: UserManagerSettings;
    readonly events: UserManagerEvents;
    clearStaleState(): Promise<void>;
    removeUser(): Promise<void>;
    signinPopup(args?: SigninPopupArgs): Promise<User>;
    signinSilent(args?: SigninSilentArgs): Promise<User | null>;
    signinRedirect(args?: SigninRedirectArgs): Promise<void>;
    signinResourceOwnerCredentials(args: SigninResourceOwnerCredentialsArgs): Promise<User>;
    signoutRedirect(args?: SignoutRedirectArgs): Promise<void>;
    signoutPopup(args?: SignoutPopupArgs): Promise<void>;
    signoutSilent(args?: SignoutSilentArgs): Promise<void>;
    querySessionStatus(args?: QuerySessionStatusArgs): Promise<SessionStatus | null>;
    revokeTokens(types?: RevokeTokensTypes): Promise<void>;
    startSilentRenew(): void;
    stopSilentRenew(): void;
}

signouSilent() and revokeTokens() may need to be invoked to complete the signout process.

[prasadtalasila]

Completed in PR #793