Fix the broken image of okta login on readme

[surajeaton]

Fixes # .

Changes proposed in this Pull Request:

• Moved out okta login image to media directory

Screenshots / Screen Recording (if applicable)

-

To Test:

-

Any specific feedback you are looking for?

-

[github-actions[bot]]

Thank you for the master pull request. 👍 Please be sure this pull request is for the master branch. The master branch is used for items that are ready for publishing. The dev branch is our working branch for all issues and enhancements. Please read our Contributing Guidelines for more information.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 72.64%. Comparing base (5b9a6ff) to head (c3d0b18). Report is 10 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #643 +/- ## ======================================= Coverage 72.64% 72.64% ======================================= Files 89 89 Lines 1126 1126 Branches 247 247 ======================================= Hits 818 818 Misses 130 130 Partials 178 178 ``` | [Flag](https://app.codecov.io/gh/etn-ccis/blui-react-workflows/pull/643/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=etn-ccis) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/etn-ccis/blui-react-workflows/pull/643/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=etn-ccis) | `72.64% <ø> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=etn-ccis#carryforward-flags-in-the-pull-request-comment) to find out more.

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

[github-actions[bot]]

Visit the preview URL for this PR (updated for commit c3d0b18):

https://blui-react-login--pr643-dev-ksn2cqpa.web.app

_{(expires Fri, 13 Sep 2024 19:43:29 GMT)}

_{🔥 via Firebase Hosting GitHub Action 🌎}

_{Sign: 1e9064d2e35ed37fe01e053587ea5f209719a043}