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/applet_interferenz.html

@@ -4,7 +4,7 @@
 <table>
     <tr>
         <td>
-            <p>Phase:</p>
+            <p>Fas:</p>
         </td>
         <td>
             <input type="range" class="slider" value="90" min="0" max="360" id="phase">
@@ -36,7 +36,7 @@
                     data: [],
                 },
                 {
-                    label: "Überlagerung",
+                    label: "Överlagrad signal",
                     fill: false,
                     pointRadius: 0,
                     borderColor: "#40C08C",
@@ -50,7 +50,7 @@
                 x: {
                     title: {
                         display: true,
-                        text: 'Zeit'
+                        text: 'Tid'
                     },
                     ticks: {
                         callback: function (val, index) {
@@ -77,7 +77,7 @@
             labels: [],
             datasets: [
                 {
-                    label: "Summiertes Signal",
+                    label: "Summerad signal",
                     fill: false,
                     pointRadius: 0,
                     borderColor: "#ED7D71",
@@ -99,7 +99,7 @@
                 x: {
                     title: {
                         display: true,
-                        text: 'Zeit'
+                        text: 'Tid'
                     },
                     ticks: {
                         callback: function (val, index) {
@@ -125,30 +125,30 @@
     });
 
     function generateValues(i1, i2, step = 1) {
-        // Reset all values:
-        interferenz.data.datasets[0].data = []; // Nutzsignal
-        interferenz.data.datasets[1].data = []; // Gefadetes Signal
+        // Återställ alla värden:
+        interferenz.data.datasets[0].data = []; // nyttosignal
+        interferenz.data.datasets[1].data = []; // fadad signal
         sum.data.datasets[0].data = [];
         sum.data.labels = [];
         interferenz.data.labels = [];
 
-        // Generate new Data:
+        // Generera nya data:
         for (let x = i1; x <= i2; x += step) {
-            // Nutzsignal:
+            // nyttosignal:
             interferenz.data.datasets[0].data.push(100 * Math.sin(x));
             interferenz.data.labels.push(x);
-            // Gefadetes Signal:
+            // fadad signal:
             interferenz.data.datasets[1].data.push(amplitude * Math.sin(x + (phase / 360) * 2 * Math.PI));
-            // Set Sum:
+            // Sätt summa:
             sum.data.datasets[0].data.push(100 * Math.sin(x) + amplitude * Math.sin(x + (phase / 360) * 2 * Math.PI))
             sum.data.labels.push(x);
         }
 
-        // Update Graphs
+        // Uppdatera diagram
         interferenz.update();
         sum.update();
 
-        // Set Text:
+        // Sätt text:
         $('#phaseV').html(phase + "&deg;");
 
     }