enhance(frontend): テーマの適用管理を改善 (#17376)

* wip

* add test

* use themeManager.currentCompiledTheme for obtaining theme variables / reduce getComputedStyle usage

* fix

* fix: better error handling on theme installation

* Update Changelog

* chore: remove frontend-shared builds as it is currently working as a stub package

* fix: broken lockfile

* fix

* fix lint

* fix

packages/frontend-shared/package.json

@@ -1,32 +1,18 @@
 {
 	"name": "frontend-shared",
 	"type": "module",
-	"main": "./js-built/index.js",
-	"types": "./js-built/index.d.ts",
-	"exports": {
-		".": {
-			"import": "./js-built/index.js",
-			"types": "./js-built/index.d.ts"
-		},
-		"./*": {
-			"import": "./js-built/*",
-			"types": "./js-built/*"
-		}
-	},
+	"private": true,
 	"scripts": {
-		"build": "node ./build.js",
-		"watch": "nodemon -w package.json -e json --exec \"node ./build.js --watch\"",
 		"eslint": "eslint './**/*.{js,jsx,ts,tsx}'",
 		"typecheck": "tsgo --noEmit",
 		"lint": "pnpm typecheck && pnpm eslint"
 	},
 	"devDependencies": {
 		"@types/node": "24.12.2",
+		"@types/tinycolor2": "1.4.6",
 		"@typescript-eslint/eslint-plugin": "8.59.0",
 		"@typescript-eslint/parser": "8.59.0",
-		"esbuild": "0.28.0",
 		"eslint-plugin-vue": "10.9.0",
-		"nodemon": "3.1.14",
 		"vue-eslint-parser": "10.4.0"
 	},
 	"files": [
@@ -34,7 +20,10 @@
 	],
 	"dependencies": {
 		"i18n": "workspace:*",
+		"json5": "2.2.3",
 		"misskey-js": "workspace:*",
+		"shiki": "4.0.2",
+		"tinycolor2": "1.6.0",
 		"vue": "3.5.33"
 	}
 }