Fix: From and Until Timestamps when OOO for One Day

Problem Statement

• As of now when a user selects OOO from website-my, the timestamp is stored as the 00:00:00 UTC timestamp for the chosen date.
• Problem arises when the user chooses to be on OOO for one day. Suppose a user chooses to be on OOO from 02/10/2023 till 02/10/2023, then both the from and until timestamps are chosen as the 00:00:00 UTC timestamps for both. In this case, 1696204800000.
• Hence, the from and until timestamps become equal resulting in a OOO for 0 ms. This would cause problems when updating the OOO dates in the user's discord nickname.
• With this issue, the from and until timestamp for the day must be set to 00:00:00 UTC and 23:50:59 UTC respectively.

Refer to the screenshot higlighting the issue

Approach

• First step, a solution design documentation must be submitted highlighting the proposed solution. To proceed with development, the design solution documentation must have at least 3 reviews and approvals.
• Second step, TDD methodology must be used to fix the issue. The first PR submitted should contain the test cases, followed by another PR with the fix.
• The fix PR should only be raised when the PR with test cases have been reviewed.