refactor: centralize status visuals and improve connection indicator logic

- Introduced a new `status-visuals.ts` file to centralize status icons and labels for consistency across the plugin.
- Updated connection indicator logic in the settings tab to utilize the new centralized visuals.
- Removed deprecated connection visual methods to streamline the codebase.
- Enhanced error handling in the status bar to reflect the new status visuals structure.

surfsense_obsidian/src/status-visuals.ts

@@ -0,0 +1,22 @@
+import type { StatusKind } from "./types";
+
+/**
+ * Single source of truth for status icons + labels. Both the status bar
+ * and the settings "Connection" heading render from this table so a change
+ * here updates both surfaces.
+ */
+
+export interface StatusVisual {
+	icon: string;
+	label: string;
+	isError: boolean;
+}
+
+export const STATUS_VISUALS: Record<StatusKind, StatusVisual> = {
+	idle: { icon: "check-circle", label: "Synced", isError: false },
+	syncing: { icon: "refresh-ccw", label: "Syncing", isError: false },
+	queued: { icon: "clock", label: "Queued", isError: false },
+	offline: { icon: "wifi-off", label: "Offline", isError: false },
+	"auth-error": { icon: "user-x", label: "Reauthenticate", isError: true },
+	error: { icon: "alert-circle", label: "Error", isError: true },
+};