Fix QuickPress shortcut not opening Edit post

[zwarm]

Fixes #20912

The PR address an issue with setting the site when launching Edit Post from a QuickPress shortcut.

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To Test:

Reproduce the issue

• Install a JP app version other than the one in this PR
• Log in and select a site
• Go back to the device's home screen and long tap on the app icon.
• Select Widgets.
• Add the QuickPress shortcut to the home screen (be sure to select a site when prompted)
• Tap on the shortcut.
• ✅ Verify you see the following error message "An error occurred when accessing this blog, and not opening the posting screen."

Test the fix

• Install JP from this PR
• Log in and select a site
• Go back to the device's home screen and long tap on the app icon.
• Select Widgets.
• Add the QuickPress shortcut to the home screen (be sure to select a site when prompted)
• Tap on the shortcut.
• ✅ Verify you the app launches and you are taken to the Edit Post view

Note: If you attempt to launch a site connected to QuickPress without being logged into an account with the necessary access, you will see the above error message.

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Regression Notes

1. Potential unintended areas of impact
   The quickpress shortcut does not work as expected

2. What I did to test those areas of impact (or what existing automated tests I relied on)
   Manual testing

3. What automated tests I added (or what prevented me from doing so)
   Relied upon existing tests

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PR Submission Checklist:

• I have completed the Regression Notes.
• I have considered adding accessibility improvements for my changes.
• I have considered if this change warrants user-facing release notes and have added them to RELEASE-NOTES.txt if necessary.

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Testing Checklist (strike-out the not-applying and unnecessary ones): N/A

[dangermattic]

	1 Warning
⚠️	PR is not assigned to a milestone.

Generated by 🚫 Danger

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud

[wpmobilebot]

📲 You can test the changes from this Pull Request in Jetpack by scanning the QR code below to install the corresponding build.

	App Name	Jetpack
	Flavor	Jalapeno
	Build Type	Debug
	Version	pr20974-98b27b1
	Commit	98b27b1
	Direct Download	jetpack-prototype-build-pr20974-98b27b1.apk

Note: Google Login is not supported on these builds.

[wpmobilebot]

📲 You can test the changes from this Pull Request in WordPress by scanning the QR code below to install the corresponding build.

	App Name	WordPress
	Flavor	Jalapeno
	Build Type	Debug
	Version	pr20974-98b27b1
	Commit	98b27b1
	Direct Download	wordpress-prototype-build-pr20974-98b27b1.apk

Note: Google Login is not supported on these builds.

[irfano]

I compared the changed line with the line before the conversion in EditPostActivity.java and the diff LGTM! 👍🏻 It fixed the issue.