.NET: Remove launchSettings.json from .gitignore in dotnet/samples (#2006)

* Remove launchSettings.json from .gitignore in dotnet/samples

* Update dotnet/samples/GettingStarted/DevUI/DevUI_Step01_BasicUsage/Properties/launchSettings.json

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update dotnet/samples/AGUIClientServer/AGUIServer/Properties/launchSettings.json

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: ReubenBond

dotnet/samples/.gitignore

@@ -0,0 +1,12 @@
+{
+  "profiles": {
+    "AGUIServer": {
+      "commandName": "Project",
+      "launchBrowser": true,
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      },
+      "applicationUrl": "http://localhost:5100;https://localhost:5101"
+    }
+  }
+}

dotnet/samples/AGUIClientServer/AGUIServer/Properties/launchSettings.json

@@ -0,0 +1,13 @@
+{
+  "profiles": {
+    "DevUI_Step01_BasicUsage": {
+      "commandName": "Project",
+      "launchUrl": "devui",
+      "launchBrowser": true,
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      },
+      "applicationUrl": "https://localhost:50516;http://localhost:50518"
+    }
+  }
+}