feat: add current-device logout

frontend/src/style.css

@@ -188,6 +188,8 @@ main:has(>.mvp-view .settings-sections) :is(.soft-button,.primary-small,.danger-
 main:has(>.mvp-view .settings-sections) :is(.settings-data>.settings-row:first-of-type .soft-button,.backup-preflight .danger-button,.password-form .primary-small){background:#f15a29;border-color:#f15a29;color:#fff;box-shadow:inset 0 1px 0 rgba(255,255,255,.36),0 4px 10px rgba(241,90,41,.20)}
 main:has(>.mvp-view .settings-sections) :is(.settings-data>.settings-row:first-of-type .soft-button:disabled,.backup-preflight .danger-button:disabled,.password-form .primary-small:disabled){background:#ebe2d8;border-color:#ded3c7;color:#aaa095;box-shadow:none;opacity:1}
 main:has(>.mvp-view .settings-sections) .danger-text{min-height:44px;border:0;background:transparent;color:var(--danger)}
+.settings-logout-button{min-width:88px;display:inline-flex;align-items:center;justify-content:center;gap:6px}
+.settings-logout-button svg{width:16px;height:16px}
 .settings-row select{height:44px;min-width:150px;padding:0 11px;border:1px solid #ded5c8;border-radius:9px;background:#fff;box-shadow:none}
 main:has(>.mvp-view .settings-sections) .session-card-actions{min-height:62px;padding:6px 0;border-bottom:1px solid #e8e0d5}
 main:has(>.mvp-view .settings-sections) .session-card-actions p{margin:0;color:var(--muted);font-size:12px}