Add Help tab to the Preferences

[yusufsahinhamza]

Contributor checklist:

• My contribution is not related to translations. Please submit translation changes via our Signal Desktop Transifex project.
• My commits are in nice logical chunks with good commit messages
• My changes are rebased on the latest development branch
• A yarn ready run passes successfully (more about tests here)
• My changes are ready to be shipped to users

Description

• "Help" tab is added to the "Preferences" just like in Signal's mobile apps.
• For now "Help" tab shows current app version and has redirect links to "Support Center" and "Terms & Privacy Policy" pages of Signal website.
• Icons are downloaded from Signal-iOS repository
• Tested at "22 April 2023" with "macOS Ventura 13.3.1".

Screenshot:

[josh-signal]

We're taking a look at this.

[yusufsahinhamza]

@josh-signal Any update?

[josh-signal]

Sorry it's taking so long, design is still having a look.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale]

This issue has been closed due to inactivity.

[yusufsahinhamza]

@josh-signal This pull request has been closed by stale bot but i think we still need it, what do you think?

[yusufsahinhamza]

acd1a83 rebased and conflicts are solved.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[yusufsahinhamza]

@josh-signal Hello again, stale bot is trying to close the pull request due inactivity, i think context of this pull request is fairly plain and easy to review, can you tell me whether or not this pull request is going to be merged?