fix: not found and loading lyrics placeholder was not displayed

BetterLyrics.Core/BetterLyrics.Core.csproj

@@ -0,0 +1,13 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Folder Include="Interfaces\" />
+  </ItemGroup>
+
+</Project>

BetterLyrics.Core/Class1.cs

@@ -0,0 +1,7 @@
+namespace BetterLyrics.Core
+{
+    public class Class1
+    {
+
+    }
+}