fix: #2435 Login and signup button enabe/disable

[gagankumre]

fix: #2435 login and signup button get enable and disable according to the input of credentials

Changes: Until the email id and password is filled up the Login/Sign Up button will remain disabled and fade in colour

Screenshots for the change:

login page-

Signup page-

[ci-reporter[bot]]

The build is failing

✨ Good work on this PR so far! ✨ Unfortunately, the Circle CI build is failing as of d755f2ed48350c7c5795720a9f66f1d37fb4ce84. Here's the output:

spotless check

> Task :spotlessCheck UP-TO-DATE

I'm sure you can fix it! If you need help, don't hesitate to ask a maintainer of the project!

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Failed build for d755f2e

##### `spotless check` ``` > Task :spotlessCheck UP-TO-DATE ```

Failed build for d72bec6

##### `spotless check` ``` > Task :spotlessCheck UP-TO-DATE ```

Failed build for 1ee2461

##### `spotless check` ``` > Task :spotlessCheck UP-TO-DATE ```

Failed build for 1ee2461

##### `spotless check` ``` > Task :spotlessCheck UP-TO-DATE ```

Failed build for ef37197

##### `spotless check` ``` > Task :spotlessCheck UP-TO-DATE ```

Failed build for ef37197

##### `spotless check` ``` > Task :spotlessCheck UP-TO-DATE ```

Failed build for 35ec6b8

##### `spotless check` ``` > Task :spotlessCheck UP-TO-DATE ```

Failed build for 35ec6b8

##### `spotless check` ``` > Task :spotlessCheck UP-TO-DATE ```

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[gagankumre]

Hello @atm1504 please have a look upon this PR. This is my first PR at this org. Some checks have been unsuccessful.

[Abhik1998]

/assign @atm1504

[gagankumre]

@atm1504 can you please have a look over this error as I am unable to fix this ci test failure

[angmas1]

run gradlew spotlessApply