fix: reset individual shortcut

[MayurSMahajan]

Solves: #5684

• [x] Added a new method to the cubit with appropriate error handling
• [x] Added cubit tests and an integration test to test the fix
• [x] Added appropriate localization.

Feature Preview

Here is a feature preview:

https://github.com/user-attachments/assets/8097048b-f574-4972-b2a4-b73c7cf7e75a

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PR Checklist

• [x] My code adheres to AppFlowy's Conventions
• [x] I've listed at least one issue this PR fixes in the description above.
• [x] I've added a test(s) to validate changes in this PR, or this PR only contains semantic changes.
• [x] All existing tests are passing.