Fixes #4330: Auth Token Not updated in UI

[Yashovardhan08]

Bug #4330 fix : Removing user key from local storage on every login to clear old token data, so that the UI is updated with the proper API Token

[codecov-commenter]

Codecov Report

Merging #4333 (8f6c202) into master (96968d6) will decrease coverage by 3.70%. Report is 1103 commits behind head on master. The diff coverage is 0.00%.

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #4333 +/- ## ========================================== - Coverage 72.93% 69.23% -3.70% ========================================== Files 83 20 -63 Lines 5368 3576 -1792 ========================================== - Hits 3915 2476 -1439 + Misses 1453 1100 -353 ``` | [Files](https://app.codecov.io/gh/Cloud-CV/EvalAI/pull/4333?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None) | Coverage Δ | | |---|---|---| | [frontend/src/js/controllers/authCtrl.js](https://app.codecov.io/gh/Cloud-CV/EvalAI/pull/4333?src=pr&el=tree&filepath=frontend%2Fsrc%2Fjs%2Fcontrollers%2FauthCtrl.js&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None#diff-ZnJvbnRlbmQvc3JjL2pzL2NvbnRyb2xsZXJzL2F1dGhDdHJsLmpz) | `53.42% <0.00%> (-13.44%)` | :arrow_down: | ... and [64 files with indirect coverage changes](https://app.codecov.io/gh/Cloud-CV/EvalAI/pull/4333/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None) | [Files](https://app.codecov.io/gh/Cloud-CV/EvalAI/pull/4333?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None) | Coverage Δ | | |---|---|---| | [frontend/src/js/controllers/authCtrl.js](https://app.codecov.io/gh/Cloud-CV/EvalAI/pull/4333?src=pr&el=tree&filepath=frontend%2Fsrc%2Fjs%2Fcontrollers%2FauthCtrl.js&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None#diff-ZnJvbnRlbmQvc3JjL2pzL2NvbnRyb2xsZXJzL2F1dGhDdHJsLmpz) | `53.42% <0.00%> (-13.44%)` | :arrow_down: | ... and [64 files with indirect coverage changes](https://app.codecov.io/gh/Cloud-CV/EvalAI/pull/4333/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None) ------ [Continue to review full report in Codecov by Sentry](https://app.codecov.io/gh/Cloud-CV/EvalAI/pull/4333?dropdown=coverage&src=pr&el=continue&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None). > **Legend** - [Click here to learn more](https://docs.codecov.io/docs/codecov-delta?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None) > `Δ = absolute (impact)`, `ø = not affected`, `? = missing data` > Powered by [Codecov](https://app.codecov.io/gh/Cloud-CV/EvalAI/pull/4333?dropdown=coverage&src=pr&el=footer&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None). Last update [c243c3a...8f6c202](https://app.codecov.io/gh/Cloud-CV/EvalAI/pull/4333?dropdown=coverage&src=pr&el=lastupdated&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None).