Add new templates and tests for improved functionality

- Created index.html template for the homepage with service cards and partner logos.
- Added page_from_md.html template for rendering pages from markdown.
- Developed services.html template detailing various services offered.
- Implemented tests for link handling in markdown, ensuring external links open in new tabs and internal links function correctly.
- Enhanced markdown parser tests to validate heading extraction, content rendering, and link safety.
- Introduced utility tests for template rendering, HTML minification, and JavaScript minification.

Co-authored-by: Copilot <copilot@github.com>

html/terms_and_conditions.html

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+<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8" /><meta http-equiv="X-UA-Compatible" content="IE=EDGE" /><meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="description" content="Read the terms and conditions for using AllYouCanGET consulting services. Understand your rights and obligations when engaging with our IT and management consulting solutions." /><meta name="keywords" content="Terms and Conditions, AllYouCanGET, Consulting Services, IT Consulting, Management Consulting, Legal Terms, User Agreement, Service Agreement" /><meta name="robots" content="index, follow" /><link rel="canonical" href="https://allucanget.biz/terms_and_conditions.html" /><meta name="theme-color" content="#111827" /><meta property="og:type" content="website" /><meta property="og:url" content="https://allucanget.biz/terms_and_conditions.html" /><meta property="og:title" content="Terms and Conditions | AllYouCanGET" /><meta property="og:description" content="Review the terms and conditions for AllYouCanGET consulting services. Know your rights and responsibilities." /><meta property="og:image" content="https://allucanget.biz/img/cropped-Logo-AllYouCanGet-512x512-1-180x180.png" /><meta property="og:site_name" content="AllYouCanGET" /><meta name="twitter:card" content="summary_large_image" /><meta name="twitter:url" content="https://allucanget.biz/terms_and_conditions.html" /><meta name="twitter:title" content="Terms and Conditions | AllYouCanGET" /><meta name="twitter:description" content="Read the terms and conditions for using AllYouCanGET consulting services. Understand your rights and obligations when engaging with our IT and management consulting solutions." /><meta name="twitter:image" content="https://allucanget.biz/img/cropped-Logo-AllYouCanGet-512x512-1-180x180.png" /><link rel="stylesheet" href="css/styles.css" /><link rel="icon" href="img/cropped-Logo-AllYouCanGet-512x512-1-180x180.png" type="image/x-icon" /><title>Terms and Conditions</title></head><body><div id="header"><nav id="site-navigation"><div id="site-navigation-container"><div id="site-navigation-content"><div id="site-navigation-bar"><div id="site-navigation-brand"><a href="index.html" class="site-home-link"><img src="img/Logo-AllYouCanGet-204x100.png" alt="AllYouCanGET" class="nav-logo" /><span class="nav-text">AllYouCanGET</span></a></div><button class="hamburger-menu" aria-label="Toggle navigation"><span class="hamburger-line"></span><span class="hamburger-line"></span><span class="hamburger-line"></span></button><div class="nav-menu"><div id="site-nav-links"><a href="index.html" class="site-nav-link">Home</a><a href="services.html" class="site-nav-link">Services</a><a href="webservices.html" class="site-nav-link">Web Services</a><a href="coaching.html" class="site-nav-link">Coaching</a><a href="imprint.html" class="site-nav-link">Imprint</a><a href="terms_and_conditions.html" class="site-nav-link active" >Terms</a ></div></div></div></div></div></nav><div id="page-title"><h2 class="page-title-header">Terms and Conditions</h2><h3 class="page-subtitle">AllYouCanGET Consulting Services</h3></div><div class="header-cta"><div class="header-cta-buttons"><button class="bigbutton"><a href="#contact-form"><span>Contact Us</span><span>→</span></a></button></div></div></div><div id="main-content"><div id="main"><div id="hero"><div class="container"><h1>General Terms and Conditions (GTC)</h1></div></div><div class="section"><div class="section-container container"><h2>1. Scope of Application</h2><div class="section-content"><p>These General Terms and Conditions (GTC) apply to all services provided by <strong>AllYouCanGET – Sinn Consulting</strong> (hereinafter “the Company”) to its clients, whether private individuals or businesses. By commissioning the Company, the client accepts these GTC in full.</p></div></div></div><div class="section"><div class="section-container container"><h2>2. Services</h2><div class="section-content"><p>The Company provides services in the areas of <strong>business consulting, creative development, digital marketing, coaching, and technical services</strong>. The specific scope, content, and objectives of a service are agreed upon individually in writing or electronically.</p></div></div></div><div class="section"><div class="section-container container"><h2>3. Offers and Agreements</h2><div class="section-content"><p>All offers are non-binding until confirmed by the Company in writing. Agreements, changes, or additional services are valid only with written confirmation.</p></div></div></div><div class="section"><div class="section-container container"><h2>4. Prices and Payment Terms</h2><div class="section-content"><p>Unless otherwise agreed, prices are stated in Swiss francs (CHF) and exclude VAT (if applicable). Invoices are issued after completion of the agreed service and are payable within <strong>30 days</strong> from the invoice date without deductions. In case of late payment, Line truncated