webconsole refactoring with react 18 (#47)

* Apply changes for react-18.

* Apply patches for react-18.

* Update favicon.

* Fix SubscriberCreate error when no S-NSSAI is defined.

* Show proper error message.

* Add webconsole to .gitignore.

* Add MSISDN field in Subscription.

* Make label to be consistent.

* Update diff to 3.3.0.

* add apiConfig as default value

* Fix bug of identify admin tenant.

* Fix FlowRule handling.

* Fix golangci-lint error.

* Remove diff to avoid confusion.

* Handle non first DNN's FlowRules.

* Add number of subscribers for bulk creation of the user.

* Start from 1.

* Set default S-NSSAI with 2 S-NSSAI configuration.

* Fix Tenant Id -> Tenant Name.

* Refactor again -> confirm.

* Support Password Confirm feature when creating new user.

* Support password confirmation in editing the user.

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Co-authored-by: ianchen0119 <ychen.desl@gmail.com>