chore(meta): Ko-fi-Link einbauen und v2-Planung aus Git ausschliessen

- README: Ko-fi Badge und Link in Impressum-Tabelle
- newtab.html: Ko-fi-Link in About-Section mit Kaffeetassen-Icon
- .gitignore: v2-planning.md ausschliessen

newtab.html

@@ -254,6 +254,14 @@
               </a>
             </div>
 
+            <div class="about-bugreport">
+              <span class="about-info-label about-info-label-block">Support</span>
+              <a href="https://ko-fi.com/hellionmedia" target="_blank" class="about-link">
+                <svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><path d="M18 8h1a4 4 0 010 8h-1"/><path d="M2 8h16v9a4 4 0 01-4 4H6a4 4 0 01-4-4V8z"/><line x1="6" y1="1" x2="6" y2="4"/><line x1="10" y1="1" x2="10" y2="4"/><line x1="14" y1="1" x2="14" y2="4"/></svg>
+                Ko-fi — hellionmedia
+              </a>
+            </div>
+
             <div class="about-browsers">
               <span class="about-info-label about-info-label-block">Kompatible Browser</span>
               <div class="about-browser-tags">