♻️ Restructure: Move Astro to repository root

BREAKING CHANGE: Astro project is now at repository root
- Removed dealplustech-astro subdirectory
- Moved all Astro files to root
- Updated PostCSS config to .cjs
- Removed old Next.js files

✅ 11 pages built successfully
✅ Cookie consent banner included
✅ Privacy/Terms links in footer
✅ Ready for Easypanel deployment (no root dir needed)

Migration path:
- Old structure: /dealplustech-astro/
- New structure: / (root)

dealplustech-astro/node_modules/prismjs/components/index.js

@@ -1,56 +0,0 @@
-const components = require('../components.js');
-const getLoader = require('../dependencies');
-
-
-/**
- * The set of all languages which have been loaded using the below function.
- *
- * @type {Set<string>}
- */
-const loadedLanguages = new Set();
-
-/**
- * Loads the given languages and adds them to the current Prism instance.
- *
- * If no languages are provided, __all__ Prism languages will be loaded.
- *
- * @param {string|string[]} [languages]
- * @returns {void}
- */
-function loadLanguages(languages) {
-	if (languages === undefined) {
-		languages = Object.keys(components.languages).filter(l => l != 'meta');
-	} else if (!Array.isArray(languages)) {
-		languages = [languages];
-	}
-
-	// the user might have loaded languages via some other way or used `prism.js` which already includes some
-	// we don't need to validate the ids because `getLoader` will ignore invalid ones
-	const loaded = [...loadedLanguages, ...Object.keys(Prism.languages)];
-
-	getLoader(components, languages, loaded).load(lang => {
-		if (!(lang in components.languages)) {
-			if (!loadLanguages.silent) {
-				console.warn('Language does not exist: ' + lang);
-			}
-			return;
-		}
-
-		const pathToLanguage = './prism-' + lang;
-
-		// remove from require cache and from Prism
-		delete require.cache[require.resolve(pathToLanguage)];
-		delete Prism.languages[lang];
-
-		require(pathToLanguage);
-
-		loadedLanguages.add(lang);
-	});
-}
-
-/**
- * Set this to `true` to prevent all warning messages `loadLanguages` logs.
- */
-loadLanguages.silent = false;
-
-module.exports = loadLanguages;