[WAIT] feat: drc-1292 User always sees a share button

[gcko]

• Redirect on unauthenticated to signin, then to relaunch page

PR checklist

• [x] Ensure you have added or ran the appropriate tests for your PR.
• [x] DCO signed

What type of PR is this? Feature

What this PR does / why we need it: User will always sees a share button

• Redirect on unauthenticated to signin, then to relaunch page

Which issue(s) this PR fixes: DRC-1292

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

NONE

[gcko]

🛑 Merging this in is dependent on the new sign-in/sign-up flow being released to Recce Cloud -> https://linear.app/recce/issue/DRC-1299/cloud-show-the-users-api-token-on-the-code-block-of-new-sign-in-flow