Add algorithms section with pathfinding visualizer

Introduces a new 'Algorithms' section, replacing the previous 'Hobbies' page. Adds components, services, and models for algorithm categories and a pathfinding visualizer supporting Dijkstra and A* algorithms. Updates navigation and i18n files to reflect the new section and removes all hobbies-related files.

src/assets/i18n/en.json

@@ -7,7 +7,7 @@
     "ABOUT": "About me",
     "IMPRINT": "Impressum",
     "PROJECTS": "Projects",
-    "HOBBY": "Hobby's",
+    "ALGORITHMS": "Algorithms",
     "SETTINGS": "Settings",
     "LANGUAGE": "Language",
     "APPEARANCE": "Appearance"
@@ -292,5 +292,21 @@
     "PARAGRAPH": "Information pursuant to Section 5 DDG",
     "COUNTRY": "Germany",
     "CONTACT": "Contact"
+  },
+  "PATHFINDING": {
+    "TITLE": "Pathfinding Algorithms",
+    "START_NODE": "Start Node",
+    "END_NODE": "End Node",
+    "WALL": "Wall",
+    "CLEAR_NODE": "Clear",
+    "DIJKSTRA": "Dijkstra",
+    "ASTAR": "A*",
+    "CLEAR_BOARD": "Clear Board",
+    "CLEAR_PATH": "Clear Path",
+    "VISITED": "Visited",
+    "PATH": "Path",
+    "ALERT": {
+      "START_END_NODES": "Please select a start and end node before running the algorithm."
+    }
   }
 }