chore: add AngleSharp dependency and refactor rant scraping to use CSS class queries

- Add AngleSharp NuGet package version 1.1.2 to csproj for HTML parsing
- Introduce DomQueryClass helper method using AngleSharp to extract elements by CSS class name
- Replace XPath-based node selection in get_rants with DomQueryClass targeting "rantlist-title-text"
- Update Program.cs to await RunIt task and add a 100-iteration loop around rant fetching
- Add transform string concatenation utility method to Program class

bin/Debug/net8.0/drnetapi.deps.json

@@ -8,6 +8,7 @@
     ".NETCoreApp,Version=v8.0": {
       "drnetapi/1.0.0": {
         "dependencies": {
+          "AngleSharp": "1.1.2",
           "GtkSharp": "3.24.24.95",
           "HtmlAgilityPack": "1.11.71"
         },
@@ -15,6 +16,17 @@
           "drnetapi.dll": {}
         }
       },
+      "AngleSharp/1.1.2": {
+        "dependencies": {
+          "System.Text.Encoding.CodePages": "8.0.0"
+        },
+        "runtime": {
+          "lib/net8.0/AngleSharp.dll": {
+            "assemblyVersion": "1.1.2.0",
+            "fileVersion": "1.1.2.0"
+          }
+        }
+      },
       "AtkSharp/3.24.24.95": {
         "dependencies": {
           "GLibSharp": "3.24.24.95"
@@ -102,7 +114,8 @@
             "fileVersion": "3.24.24.95"
           }
         }
-      }
+      },
+      "System.Text.Encoding.CodePages/8.0.0": {}
     }
   },
   "libraries": {
@@ -111,6 +124,13 @@
       "serviceable": false,
       "sha512": ""
     },
+    "AngleSharp/1.1.2": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-aRFpAqixbuj1Vmqy2hsWPF0PJygo1SfjvmpBvVWZv6i+/u+C/L4wDdwFIzyCGUbjqr61NsZdPNPqDE8wlmG2qA==",
+      "path": "anglesharp/1.1.2",
+      "hashPath": "anglesharp.1.1.2.nupkg.sha512"
+    },
     "AtkSharp/3.24.24.95": {
       "type": "package",
       "serviceable": true,
@@ -166,6 +186,13 @@
       "sha512": "sha512-H7JeyEvLsgvsbamGpRgoNtdvzPiGwwsUuoeTobN1C/JRjw1J8Snw0yf2WBr7CKx5GLwbrwpQYOb7N/HD17ME8A==",
       "path": "pangosharp/3.24.24.95",
       "hashPath": "pangosharp.3.24.24.95.nupkg.sha512"
+    },
+    "System.Text.Encoding.CodePages/8.0.0": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-OZIsVplFGaVY90G2SbpgU7EnCoOO5pw1t4ic21dBF3/1omrJFpAGoNAVpPyMVOC90/hvgkGG3VFqR13YgZMQfg==",
+      "path": "system.text.encoding.codepages/8.0.0",
+      "hashPath": "system.text.encoding.codepages.8.0.0.nupkg.sha512"
     }
   }
 }