Separate common interfaces from client-specific classes

Changes:
- Move client-specific classes to client/src/models
- Extract common interface to standalone files in common/interfaces
- Remove unused features from client-specific classes
    - These are features which were once used on the old server, but are now no longer needed
    - Remove getObject() method for Account, Contact, and Conversation
    - Remove lookups, registrationState and registeringName from Account
    - Remove resolving logic from Contact
    - Remove requests and listeners from Conversation (once used for Socket.IO and promises on server)
- Rename services/Conversation.ts to services/conversationQueries.ts
- Update imports

Future work:
- Create interface versions of Account, Contact, and Conversation
- Create new interfaces to replace Records on server

GitLab: #94
Change-Id: Ia51fe6ebeda44a30887d851a5564569dc290e5ed
diff --git a/client/src/components/ConversationView.tsx b/client/src/components/ConversationView.tsx
index e412cca..0319574 100644
--- a/client/src/components/ConversationView.tsx
+++ b/client/src/components/ConversationView.tsx
@@ -16,13 +16,13 @@
  * <https://www.gnu.org/licenses/>.
  */
 import { Divider, Stack, Typography } from '@mui/material';
-import { ConversationMember } from 'jami-web-common';
 import { useContext, useMemo } from 'react';
 import { useTranslation } from 'react-i18next';
 
 import { useAuthContext } from '../contexts/AuthProvider';
 import { ConversationContext } from '../contexts/ConversationProvider';
 import { useStartCall } from '../hooks/useStartCall';
+import { ConversationMember } from '../models/Conversation';
 import ChatInterface from '../pages/ChatInterface';
 import { translateEnumeration, TranslateEnumerationOptions } from '../utils/translations';
 import { AddParticipantButton, ShowOptionsMenuButton, StartAudioCallButton, StartVideoCallButton } from './Button';