feat(modal): Port ServerIdentity (closes #112)

[aisuleep]

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• [x] I understand and have followed the contribution guide
• [x] I have tested my changes locally and they are working as intended
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[aisuleep]

Not sure if still needed, but the issue was still labeled as "help-wanted" so I spruced up and finished the draft PR from before. :+1:

[aisuleep]

I have read the CLA Document and I hereby sign the CLA

[insertish]

PR went stale, feedback not actioned / responded to, closing out for now NB. conflicts with draft ServerIdentity coming in from M3 branch