improve network error handling, oauth2 logic cleanup, tls settings, and ui/test updates (#4444)

~ axios error interceptor fixes and timeline network logs ui updates
~ axios instance error interceptor now returns promise rejects instead of plain objects
~ fixed digest_auth regression
~ removed the interceptor logic for the oauth2 token url calls
~ timeline network logs ui updates
~ updated oauth2 test collections

* ssl/tls fixes and error handling
~ set the min allowed tls version to 1.0 (TLSv1)
~ proxy/certs/tls setup error handling

* enhance JSON stringification with circular reference handling
- Add getCircularReplacer to safely handle circular references in objects
- Update safeStringifyJSON to support indentation and handle undefined values
~ we currently support digest auth for bruno-cli

---------

Co-authored-by: lohit <lohit@usebruno.com>
Co-authored-by: Anoop M D <anoop.md1421@gmail.com>

packages/bruno-tests/keycloak-authorization_code/environments/oauth2.bru

@@ -1,21 +1,6 @@
 vars {
-  host: http://localhost:8081
-  bearer_auth_token: your_secret_token
-  basic_auth_password: della
-  client_id: client_id_1
-  client_secret: client_secret_1
-  password_credentials_access_token_url: http://localhost:8081/api/auth/oauth2/password_credentials/token
-  password_credentials_username: foo
-  password_credentials_password: bar
-  password_credentials_scope: 
-  authorization_code_authorize_url: http://localhost:8081/api/auth/oauth2/authorization_code/authorize
-  authorization_code_callback_url: http://localhost:8081/api/auth/oauth2/authorization_code/callback
-  authorization_code_access_token_url: http://localhost:8081/api/auth/oauth2/authorization_code/token
-  authorization_code_access_token: null
-  client_credentials_access_token_url: http://localhost:8081/api/auth/oauth2/client_credentials/token
-  client_credentials_client_id: client_id_1
-  client_credentials_client_secret: client_secret_1
-  client_credentials_scope: admin
-  client_credentials_access_token: 870132a2ed28a3c94d34f868e6514720
   key-host: http://localhost:8080
 }
+vars:secret [
+  client_secret
+]