Standardize Empty/Skeleton states across Dokploy UI for consistency, accessibility, and reduced layout shift

What problem will this feature address?

The UI currently shows inconsistent loading and empty states (plain text, different layouts, mixed affordances). This causes visual jitter, unclear guidance, and uneven UX across dashboards and dialogs. It also makes the UI harder to scan and less accessible for keyboard and screen-reader users.

Describe the solution you'd like

Adopt a single Empty/Skeleton pattern (shadcn Empty + Skeleton) across all dashboards, dialogs, tables, and selectors. Replace text-only “Loading…” and “No results” blocks with consistent Empty layouts and use EmptyContent for CTAs. Add a reusable ListSkeleton helper to standardize list loading layouts. Ensure key flows (projects, servers, requests, monitoring, deployments, schedules, backups, providers, domains, settings) use the same approach.

Additional context

No response

Will you send a PR to implement it?

Yes

Start by inventorying the dashboards, dialogs, tables, and selectors named in the issue, then inspect the current Empty and Skeleton usage. The work is done when the listed flows use consistent Empty layouts, EmptyContent CTAs, and ListSkeleton loading states without text-only loading or empty blocks.