Swedish adaptation: Instegscertifikat and HAREC content

- Sections and slides rewritten in Swedish; German law and institutions replaced by
  Swedish/CEPT/ITU equivalents (PTS, SSA, PTSFS 2025:1, SSMFS 2008:18), unverified
  statements marked "% TODO VERIFY"
- New toc: INSTEG, HAREC, UPPGRADERING; section idents are Swedish (see ident-map.tsv)
- Exam-question tags, BNetzA question pool, solutions and the German SWL course removed
- Static pages, snippets, applets, READMEs and image alt-texts translated
- TikZ labels translated; SVG drawings regenerated (drawing 689 still fails to build
  upstream: it references a missing photo)
- Changed from the original: not endorsed by DARC e.V., SSA or PTS

Co-Authored-By: Claude Sonnet 5.5 <[email protected]>

contents/html/sprungdistanz_applet.html

@@ -1,10 +1,10 @@
 <html>
     <script src="https://www.50ohm.de/assets/jquery/3.7.1/jquery.min.js"></script>
-<p>Hier kann man das Ganze interaktiv ausprobieren. Wenn der Abstrahlwinkel flach ist steigt die Reichweite. Ist der Abstrahlwinkel steil, so verkürzt sich die Reichweite.</p><br>
+<p>Här kan du prova det hela interaktivt. Om utstrålningsvinkeln är flack ökar räckvidden. Är utstrålningsvinkeln brant blir räckvidden kortare.</p><br>
     <table>
         <tr>
             <td>
-                Abstrahlwinkel $\alpha$:
+                Utstrålningsvinkel $\alpha$:
             </td>
             <td>
                 <input type="range" class="slider" value="0" min="0" max="90" id="beamAngle">
@@ -15,7 +15,7 @@
         </tr>
     </table>
     <canvas id="myCanvas" style="border:0px; width:100%; display: block;">
-        Sorry, your browser does not support canvas.
+        Din webbläsare stöder inte canvas.
         </canvas>
         
         <script>