DBC22-5245: re-centre shared map links in mobile visible area

[ray-oxd]

📝 Submitter

🔗 JIRA Ticket

• Ticket Link: DBC22-5245

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✅ Quality Assurance & Requirements

• Requirements Met: I have confirmed that all acceptance criteria from the JIRA ticket are fulfilled.
• Tested desktop in local or dev envs
• Tested mobile in local or dev envs
• Ran unit tests locally
• SonarCloud: I have verified that the SonarCloud analysis is clean/passing for this branch.

⚙️ Configuration & Environment

• New Env Variables: No

🧪 How to Test (if required)

1. On desktop, open a map object (and optionally a route), copy the share URL.
2. Open that URL on a mobile-width viewport.
3. Confirm the shared item (and route, if present) centres in the visible map area and is not covered by the side panel.
4. Related click-to-open behaviour: see DBC22-4932.

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🔍 Reviewer Checklist

• Reviewed code for logic and cleanliness
• Re-tested desktop/mobile in local or dev envs
• Verified no new console warnings/errors
• Confirmed that any new env variables are understood/documented