Linked-devices management UI

[codebestia]

Description:
A settings screen listing the user's devices (#106): name, platform, last seen, "this device", with link-new-device (#117) and revoke (#107) / "log out everywhere" (#119) actions. Reflect key-change implications to the user.

Acceptance criteria:

• Lists devices with status + current-device flag
• Link/revoke/log-out-everywhere wired to endpoints
• Revoking prompts re-verification messaging

[TheBigWealth89]

@TheBigWealth89 has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

Hi, I'd like to work on this issue! because I am very conversant with solving problems like this

ℹ️ Repo Maintainers: To accept this application, review their application or assign @TheBigWealth89 to this issue.

[fairbid01]

@fairbid01 has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

GM, Maintainer, i would like to work on this issue!

ℹ️ Repo Maintainers: To accept this application, review their application or assign @fairbid01 to this issue.

[deep-bhikadiya]

@deep-bhikadiya has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

Hello, this looks like something I can help with. I’ll work on the PR today and share it once it’s ready.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @deep-bhikadiya to this issue.