feat: insights leaderboard

[emlimlf]

In this PR

• Created the leaderboard landing page and wired it to API
• Created the leaderboard detail page and wired it to API

Ticket

IN-816

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Conventional Commits FTW!

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[Copilot]

Pull Request Overview

This PR introduces a comprehensive leaderboards feature for the LFX Insights frontend application. The implementation allows users to explore and compare open source projects across various performance metrics.

Key changes:

• Adds leaderboard pages with routing for landing and detail views
• Implements six leaderboard configurations (active contributors, active organizations, longest running, commit activity, focused teams, and small teams with massive output)
• Creates API service layer with infinite scroll pagination support
• Adds "ghost" button type to the UI kit

Reviewed Changes

Copilot reviewed 28 out of 28 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
frontend/app/pages/leaderboards/index.vue	Landing page displaying all leaderboard categories
frontend/app/pages/leaderboards/[key].vue	Dynamic detail page for individual leaderboards
frontend/app/config/menu/index.ts	Adds leaderboards entry to main navigation menu
frontend/app/components/uikit/button/types/button.types.ts	Extends button types with "ghost" variant
frontend/app/components/uikit/button/button.scss	Styles for ghost button variant
frontend/app/components/shared/types/tanstack.ts	Adds query keys for leaderboard data fetching
frontend/app/components/shared/types/routes.ts	Defines leaderboard route constants
frontend/app/components/modules/leaderboards/services/leaderboard.api.service.ts	API service for fetching and managing leaderboard data
frontend/app/components/modules/leaderboards/config/*.ts	Configuration files defining each leaderboard's metadata
frontend/app/components/modules/leaderboards/components/views/*.vue	Main view components for landing and detail pages
frontend/app/components/modules/leaderboards/components/sections/*.vue	Reusable section components (cards, tables, headers, sidebar)
frontend/app/components/modules/leaderboards/components/data-displays/*.vue	Components for formatting and displaying metric values
frontend/app/components/modules/leaderboards/README.md	Documentation for the leaderboards module

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[gaspergrom]

Add caching for api calls and pages and also implement stuff for remaining leaderboards and comment it out