Implement authentication with SIWE (#99)

* Create web3 modal provider with SIWE

* Add auth router to handle SIWE authentication

* Use axios instance to make request

* Add button for SIWE authentication

* Add changes to access session in web-app GQL requests

* Add auth check in GQL context and load/create user

* Use authenticated user from context

* Redirect to sign in page if unauthenticated and logout button

* Change sign-in route to login

* Get project domain from config file

* Set user ethAddress column as unique

* Use formatted user name

* Get session secret and origin url from config file

* Add unique constraint for eth address

* Get secure and samesite from origin url

* Get wallet connect id and backend url from env file

* Format user email in member tab panel

* Add backend config isProduction to set trust proxy

* Use only one server url config

* Add tool tip for displaying email

* Add trustProxy and domain in server.session config

* Add SERVER_GQL_PATH constant in frontend

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Co-authored-by: neeraj <neeraj.rtly@gmail.com>

README.md

@@ -109,7 +109,7 @@
 - Copy the graphQL endpoint from terminal and add the endpoint in the [.env](packages/frontend/.env) file present in `packages/frontend`
 
   ```env
-  REACT_APP_GQL_SERVER_URL = 'http://localhost:8000/graphql'
+  REACT_APP_SERVER_URL = 'http://localhost:8000'
   ```
 
 - Copy the GitHub OAuth app client ID from previous steps and set it in frontend [.env](packages/frontend/.env) file