message: Jitsi conferences names, take 3
  Shorter, capatalised, just 'Jitsi' prefix rather than 'JitsiConference'
diff: @@ -85,7 +85,7 @@ import DesktopCapturerSourcePicker from "./components/views/elements/DesktopCapt
  import { Action } from './dispatcher/actions';
  import VoipUserMapper from './VoipUserMapper';
  import { addManagedHybridWidget, isManagedHybridWidgetEnabled } from './widgets/ManagedHybrid';
  -import { randomString } from "matrix-js-sdk/src/randomstring";
  +import { randomUppercaseString, randomLowercaseString } from "matrix-js-sdk/src/randomstring";
  export const PROTOCOL_PSTN = 'm.protocol.pstn';
  export const PROTOCOL_PSTN_PREFIXED = 'im.vector.protocol.pstn';
  @@ -861,8 +861,9 @@ export default class CallHandler {
  // https://github.com/matrix-org/prosody-mod-auth-matrix-user-verification
  confId = base32.stringify(Buffer.from(roomId), { pad: false });
  } else {
  - // Create a random human readable conference ID
  - confId = `JitsiConference${randomString(32)}`;
  + // Create a random conference ID
  + const random = randomUppercaseString(1) + randomLowercaseString(23);
  + confId = 'Jitsi' + random;
  }
  let widgetUrl = WidgetUtils.getLocalJitsiWrapperUrl({auth: jitsiAuth});
  