Adding code for completed chapter 13 solution

Chapter13/Complete/UnoMediaCollection/.vscode/launch.json

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+{
+  // Use IntelliSense to find out which attributes exist for C# debugging
+  // Use hover for the description of the existing attributes
+  // For further information visit https://github.com/OmniSharp/omnisharp-vscode/blob/master/debugger-launchjson.md
+  "version": "0.2.0",
+  "configurations": [
+    {
+      // Use IntelliSense to find out which attributes exist for C# debugging
+      // Use hover for the description of the existing attributes
+      // For further information visit https://github.com/OmniSharp/omnisharp-vscode/blob/master/debugger-launchjson.md
+      "name": "Debug (Chrome, WebAssembly)",
+      "type": "chrome",
+      "request": "launch",
+      "url": "http://localhost:5000",
+      "webRoot": "${workspaceFolder}/UnoMediaCollection.Wasm",
+      "inspectUri": "{wsProtocol}://{url.hostname}:{url.port}/_framework/debug/ws-proxy?browser={browserInspectUri}",
+      "timeout": 30000,
+      "server": {
+        "runtimeExecutable": "dotnet",
+        "program": "run",
+        "outputCapture": "std",
+        "timeout": 30000,
+        "cwd": "${workspaceFolder}/UnoMediaCollection.Wasm"
+      }
+    },
+    {
+      // Use IntelliSense to find out which attributes exist for C# debugging
+      // Use hover for the description of the existing attributes
+      // For further information visit https://github.com/OmniSharp/omnisharp-vscode/blob/master/debugger-launchjson.md
+      "name": "Skia.GTK (Debug)",
+      "type": "coreclr",
+      "request": "launch",
+      "preLaunchTask": "build-skia-gtk",
+      // If you have changed target frameworks, make sure to update the program path.
+      "program": "${workspaceFolder}/UnoMediaCollection.Skia.Gtk/bin/Debug/net7.0/UnoMediaCollection.Skia.Gtk.dll",
+      "args": [],
+      "env": {
+        "DOTNET_MODIFIABLE_ASSEMBLIES": "debug"
+      },
+      "cwd": "${workspaceFolder}/UnoMediaCollection.Skia.Gtk",
+      // For more information about the 'console' field, see https://aka.ms/VSCode-CS-LaunchJson-Console
+      "console": "internalConsole",
+      "stopAtEntry": false
+    },
+    {
+      "name": "Uno Platform Mobile",
+      "type": "Uno",
+      "request": "launch",
+      // any Uno* task will do, this is simply to satisfy vscode requirement when a launch.json is present
+      "preLaunchTask": "Uno: android | Debug | android-x64"
+    },
+  ]
+}

Chapter13/Complete/UnoMediaCollection/.vscode/settings.json

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+{
+  "explorer.fileNesting.enabled": true,
+  "explorer.fileNesting.expand": false,
+  "explorer.fileNesting.patterns": {
+    "*.xaml": "$(capture).xaml.cs"
+  }
+}

Chapter13/Complete/UnoMediaCollection/.vscode/tasks.json

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+{
+  "version": "2.0.0",
+  "tasks": [
+    {
+      "label": "build-wasm",
+      "command": "dotnet",
+      "type": "process",
+      "args": [
+        "build",
+        "${workspaceFolder}/UnoMediaCollection.Wasm/UnoMediaCollection.Wasm.csproj",
+        "/property:GenerateFullPaths=true",
+        "/consoleloggerparameters:NoSummary"
+      ],
+      "problemMatcher": "$msCompile"
+    },
+    {
+      "label": "publish-wasm",
+      "command": "dotnet",
+      "type": "process",
+      "args": [
+        "publish",
+        "${workspaceFolder}/UnoMediaCollection.Wasm/UnoMediaCollection.Wasm.csproj",
+        "/property:GenerateFullPaths=true",
+        "/consoleloggerparameters:NoSummary"
+      ],
+      "problemMatcher": "$msCompile"
+    },
+    {
+      "label": "build-skia-gtk",
+      "command": "dotnet",
+      "type": "process",
+      "args": [
+        "build",
+        "${workspaceFolder}/UnoMediaCollection.Skia.Gtk/UnoMediaCollection.Skia.Gtk.csproj",
+        "/property:GenerateFullPaths=true",
+        "/consoleloggerparameters:NoSummary"
+      ],
+      "problemMatcher": "$msCompile"
+    },
+    {
+      "label": "publish-skia-gtk",
+      "command": "dotnet",
+      "type": "process",
+      "args": [
+        "publish",
+        "${workspaceFolder}/UnoMediaCollection.Skia.Gtk/UnoMediaCollection.Skia.Gtk.csproj",
+        "/property:GenerateFullPaths=true",
+        "/consoleloggerparameters:NoSummary"
+      ],
+      "problemMatcher": "$msCompile"
+    }
+  ]
+}