feat(ui): New status page UI

[TwiN]

Summary

Fixes #1199

Checklist

• Tested and/or added tests to validate that the changes work as intended, if applicable.
• Updated documentation in README.md, if applicable.

[Copilot]

Pull Request Overview

This pull request introduces a comprehensive redesign of the Gatus status page UI, modernizing the interface with a new design system and enhanced user experience. The changes transform the traditional status monitoring interface into a contemporary dashboard with improved usability.

• Implements a modern design system using shadcn/ui components and Tailwind CSS design tokens
• Replaces the existing Vue.js composition with new component architecture and improved state management
• Adds advanced search and filtering capabilities for better endpoint management

Reviewed Changes

Copilot reviewed 39 out of 41 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
web/static/js/app.js	Complete rewrite with modern Vue 3 composition API and new UI components
web/static/index.html	Added theme initialization script to prevent flash of unstyled content
web/static/css/app.css	Updated with shadcn/ui design tokens and modern styling system
web/app/vue.config.js	Added build configuration note for Node.js compatibility
web/app/tailwind.config.js	Enhanced with shadcn/ui theme system and design tokens
web/app/src/views/Home.vue	Reimplemented dashboard with cards, search, filtering, and pagination
web/app/src/views/Details.vue	Modernized endpoint details page with improved data visualization
web/app/src/lib/utils.js	Added utility functions for CSS class merging
web/app/src/index.css	Integrated shadcn/ui CSS custom properties and base styles
web/app/src/components/ui/select/index.js	New select component export
web/app/src/components/ui/select/Select.vue	Custom accessible select component implementation
web/app/src/components/ui/input/index.js	New input component export
web/app/src/components/ui/input/Input.vue	Styled input component with design system integration

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[TwiN]

Temporary image built: ghcr.io/twin/gatus:pr-1198

Workflow: https://github.com/TwiN/gatus/actions/runs/16946884760