Om Chauhan

## What this PR does This PR converted the add_category_button.jsx from class to functional component. ## Videos Before: [Before.webm](https://github.com/WikiEducationFoundation/WikiEduDashboard/assets/119471995/67263734-e14b-484f-9ac7-6489446ed280) After: [After.webm](https://github.com/WikiEducationFoundation/WikiEduDashboard/assets/119471995/6017b340-87db-431d-9c76-0e3017ae1a0d)

Refactored course_alert.jsx from class to functional component

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## What this PR does This PR converted the course_alert.jsx from class to functional component. ## Screenshots Before:  After: 

Converted course_alerts.jsx from class to functional component

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## What this PR does This PR converted the course_alerts.jsx from class to functional component. ## Screenshots Before:  After: 

## What this PR does This PR converted the option.jsx from class to functional component. ## Videos Before: [Before.webm](https://github.com/WikiEducationFoundation/WikiEduDashboard/assets/119471995/1c066386-16e9-4c0c-a78f-95aaa594bbfd) After: [After.webm](https://github.com/WikiEducationFoundation/WikiEduDashboard/assets/119471995/6cb5fc99-d44c-4522-8be6-67ebfb4abdbc)

Added 'Get Help' button to training modules

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## What this PR does Fixes #5486 This pr mainly aims to show the 'Get Help' button on training modules. The button's purpose is to send alerts to the Wiki...

## What this PR does This PR converted the settings_handler.jsx from class to functional component. ## Videos Before: [Before.webm](https://github.com/WikiEducationFoundation/WikiEduDashboard/assets/119471995/d46826a7-1110-45f5-bcb7-90dc7641e915) After: [After.webm](https://github.com/WikiEducationFoundation/WikiEduDashboard/assets/119471995/ba82a0c7-322e-4622-a85e-5a3223846149)

Extended error logging for 'update_categories' of update_course_stats.rb

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## What this PR does This pr is focused on extending error logging for 'update_categories' of update_course_stats.rb

Restored removed self-assign articles to the pool of Available Articles

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## What this PR does Fixes #5549 This pr helps in restoring the un-assigned article back to the pool of available articles. Created action to unclaim the assignment. Created controller...

Refactored overview_handler.jsx to functional component

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## What this PR does This PR converted the overview_handler.jsx from class to functional component. ## Videos Before: [Before.webm](https://github.com/WikiEducationFoundation/WikiEduDashboard/assets/119471995/a6b83a2b-8acc-4eaa-aaba-6d3bf9722236) After: [After.webm](https://github.com/WikiEducationFoundation/WikiEduDashboard/assets/119471995/32a60e1a-efa7-4e2d-9da1-cac6b2edd2ce)

Wrong display of error message "There was an error: Internal Server Error"

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### What is happening? As an instructor whenever we try to add any available article in our program, we go to the available articles section inside our program where after...