fix(grader): Sending two comments on the same line won't multiple com…

[yammesicka]

…ments

[sourcery-ai]

PR Type: Bug fix

PR Summary: The pull request introduces a fix to the grader functionality where previously, sending two comments on the same line could result in multiple comments being sent unintentionally. The changes include the addition of a named function for handling 'keydown' events on textareas, which upon a successful comment submission (using CTRL + ENTER), clears the textarea's value and removes the event listener to prevent duplicate submissions. Additionally, the event listener is now properly attached to the specific textarea element, enhancing the specificity and reliability of the event handling.

Decision: Comment

📝 Type: 'Bug fix' - not supported yet.

• Sourcery currently only approves 'Typo fix' PRs.

✅ Issue addressed: this change correctly addresses the issue or implements the desired feature.

No details provided.

✅ Small diff: the diff is small enough to approve with confidence.

No details provided.

General suggestions:

• Consider adding comments within the code to explain the rationale behind removing the event listener after a comment is sent. This could help future maintainers understand the decision-making process.
• Review the use of both 'ev.key' and 'ev.which' for determining the ENTER key press. Modern browsers support 'ev.key', so if there's no explicit requirement to support very old browsers, simplifying the condition to only check 'ev.key' might improve code readability.
• Ensure thorough testing across different browsers and devices to confirm that the removal of the event listener does not interfere with other functionalities and that all intended behaviors work as expected.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.12%. Comparing base (74fa1c1) to head (79d26cd).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #363   +/-   ##
=======================================
  Coverage   80.12%   80.12%           
=======================================
  Files          63       63           
  Lines        2953     2953           
=======================================
  Hits         2366     2366           
  Misses        587      587           

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