Create new interfaces for objects transmitted using the REST API

Changes:
- Create new IContact, IAccount, and IConversation interfaces in common/
    - These interfaces represent the serialized versions of the models which are transferred
    - The client models are classes which implement these interfaces
- Create new LookupResult interface for nameserver lookup results
- Create new IConversationMember interface for conversation members
    - The client interface ConversationMember extends this interface to have a Contact field rather than IContact
- Create new ConversationInfos interface for conversation infos
- Create new ContactDetails interface for contact details (used by contacts routes)
- Move request and response body interfaces into common/
- Merge AccountConfig into AccountDetails interface
- Create interfaces for server-only objects:
    - ConversationMemberInfos
    - ConversationRequestMetadata
- Ensure interfaces in jami-signal-interfaces.ts do not contain fields with JamiSwig types
- Rename models/ filenames to camelCase as they are not components
- Rewrite client models to have proper TypeScript accessors and remove unused getters
- Rewrite how client models are initialized from the serialized interface using .fromInterface static methods
- Make client models implement the interfaces in common/ for consistency
- Remove unneeded _next parameter for Express.js route handlers
- Use Partial<T> for all Express.js request body types on server
- Type all Axios response body types with interfaces

GitLab: #92
Change-Id: I4b2c75ac632ec5d9bf12a874a5ba04467c76fa6d
diff --git a/common/src/index.ts b/common/src/index.ts
index 1d3c7f6..a7c0b1c 100644
--- a/common/src/index.ts
+++ b/common/src/index.ts
@@ -18,7 +18,10 @@
 export * from './enums/http-status-code.js';
 export * from './enums/registration-state.js';
 export * from './enums/websocket-message-type.js';
-export * from './interfaces/account-details.js';
-export * from './interfaces/message.js';
+export * from './interfaces/account.js';
+export * from './interfaces/auth-interfaces.js';
+export * from './interfaces/contact.js';
+export * from './interfaces/conversation.js';
+export * from './interfaces/lookup-result.js';
 export * from './interfaces/websocket-interfaces.js';
 export * from './interfaces/websocket-message.js';