[stable27] fix(share): use user timezone to parse share expiration date

[backportbot]

Backport of #42660

Warning, This backport's changes differ from the original and might be incomplete ⚠️

Todo

• Review and resolve any conflicts
• Amend HEAD commit to remove [skip ci] tag

---

Learn more about backports at https://docs.nextcloud.com/server/stable/go.php?to=developer-backports.

[Altahrim]

/backport to stable26

[welcome]

Thanks for your first pull request and welcome to the community! Feel free to keep them coming! If you are looking for issues to tackle then have a look at this selection: https://github.com/nextcloud/server/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22

[backportbot-nextcloud]

The backport to stable26 failed. Please do this backport manually.

# Switch to the target branch and update it
git checkout stable26
git pull origin stable26

# Create the new backport branch
git checkout -b fix/foo-stable26

# Cherry pick the change from the commit sha1 of the change against the default branch
# This might cause conflicts. Resolve them.
git cherry-pick abc123

# Push the cherry pick commit to the remote repository and open a pull request
git push origin fix/foo-stable26

Error: Unknown error

More info at https://docs.nextcloud.com/server/latest/developer_manual/getting_started/development_process.html#manual-backport

[Altahrim]

/skjnldsv-backport to stable26

[backportbot]

The backport to stable26 failed. Please do this backport manually.

# Switch to the target branch and update it
git checkout stable26
git pull origin stable26

# Create the new backport branch
git checkout -b backport/42791/stable26

# Cherry pick the change from the commit sha1 of the change against the default branch
# This might cause conflicts, resolve them
git cherry-pick ee6a10f8f53cae62bfa6c88a42d731864b73c54f

# Push the cherry pick commit to the remote repository and open a pull request
git push origin backport/42791/stable26

Error: Validation Failed: {"resource":"PullRequest","code":"custom","message":"No commits between stable26 and backport/42791/stable26"}

---

Learn more about backports at https://docs.nextcloud.com/server/stable/go.php?to=developer-backports.