feat: add dropdown widget

[Eetwalt]

Summary

Adds a basic dropdown widget. Will be used for an upcoming export feature.

How did you test this change?

https://liquipedia.net/leagueoflegends/User:Eetwalt + css & js

[Copilot]

Pull request overview

This PR introduces a reusable dropdown widget component that will be used for an upcoming export feature. The implementation includes styling, Lua widget modules, JavaScript functionality, and comprehensive test coverage.

Changes:

• Added a dropdown widget with toggle button and menu capabilities
• Implemented styling for both light and dark themes with appropriate hover states
• Added three new icon definitions (share, copy, download) for export functionality

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
stylesheets/commons/Dropdown.scss	Defines dropdown widget styles with theme support and interactive states
stylesheets/Main.scss	Imports the new dropdown stylesheet
lua/wikis/commons/Widget/Basic/DropdownItem.lua	Implements individual dropdown item widget with icon and link support
lua/wikis/commons/Widget/Basic/Dropdown.lua	Implements main dropdown wrapper widget with toggle button
lua/wikis/commons/Icon/Data.lua	Adds icon definitions for export-related actions
lua/spec/dropdown_spec.lua	Provides comprehensive test coverage for dropdown functionality
javascript/commons/Dropdown.js	Implements click handling to toggle dropdown visibility
javascript/Main.js	Registers the dropdown JavaScript module

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[ElectricalBoy]

Suggested change

	classes = Array.extend({'dropdown-widget__item'}, self.props.classes or {}),
	classes = Array.extend('dropdown-widget__item', self.props.classes),

[ElectricalBoy]

Suggested change

	---@class DropdownItemWidgetParameters
	---@field icon string|Widget?
	---@field text string
	---@field link string?
	---@field linktype 'internal'|'external'|nil
	---@field classes table?
	---@field attributes table?
	---@class DropdownItemWidgetParameters
	---@field icon string|Widget?
	---@field children string|number|Widget|Html|(string|number|Widget|Html)[]
	---@field link string?
	---@field linktype 'internal'|'external'|nil
	---@field classes string[]?
	---@field attributes table?

[ElectricalBoy]

Suggested change

	children = content
	children = WidgetUtil.collect(getIcon(), self props.children)

[ElectricalBoy]

Suggested change

	local content = {}
	if self.props.icon then
	local iconWidget
	if type(self.props.icon) == 'string' then
	iconWidget = Icon{iconName = self.props.icon, size = 'sm'}
	else
	iconWidget = self.props.icon
	end
	table.insert(content, iconWidget)
	end
	table.insert(content, self.props.text)
	---@return Widget?
	local function getIcon()
	if Logic.isEmpty(self.props.icon) then
	return
	elseif type(self.props.icon) == 'string' then
	return Icon{iconName = self.props.icon, size = 'sm'}
	end
	return self.props.icon
	end

written on phone; untested