tweak(Studio): Only show latest changelog after migrating

The user might miss some changes, but getting 10s of changelogs on startup if someone hasn't used Studio in a while isn't great either..
Also, this is easier to integrate with automatic changelogs

Studio/CelesteStudio/CelesteStudio.csproj

@@ -50,15 +50,10 @@
         <EmbeddedResource Include="Assets\JetBrainsMono\JetBrainsMonoNL-BoldItalic.otf" LogicalName="JetBrainsMono/JetBrainsMono-BoldItalic"/>
     </ItemGroup>
 
-    <!-- Changelogs -->
+    <!-- Changelog (generated during Release action) -->
     <ItemGroup>
         <EmbeddedResource Condition="Exists('Assets\VersionInfo.txt')" Include="Assets\VersionInfo.txt" LogicalName="VersionInfo.txt"/>
         <EmbeddedResource Condition="Exists('Assets\Changelog.md')" Include="Assets\Changelog.md" LogicalName="Changelog.md"/>
-
-        <EmbeddedResource Include="Assets\Changelogs\v3.0.0.md" LogicalName="Changelogs/v3.0.0.md"/>
-        <EmbeddedResource Include="Assets\Changelogs\v3.0.0\*.png" LogicalName="Changelogs/v3.0.0/%(Filename).png"/>
-
-        <EmbeddedResource Include="Assets\Changelogs\v3.2.0.md" LogicalName="Changelogs/v3.2.0.md"/>
     </ItemGroup>
 
 </Project>

Studio/CelesteStudio/Dialog/ChangelogDialog.cs

@@ -132,8 +132,9 @@ private ChangelogDialog(string title, IEnumerable<string> changelogLines) {
     }
 
     public static void Show() {
-        using var versionInfoData = Assembly.GetExecutingAssembly().GetManifestResourceStream("VersionInfo.txt");
-        using var changelogData = Assembly.GetExecutingAssembly().GetManifestResourceStream("Changelog.md");
+        var asm = Assembly.GetExecutingAssembly();
+        using var versionInfoData = asm.GetManifestResourceStream("VersionInfo.txt");
+        using var changelogData = asm.GetManifestResourceStream("Changelog.md");
         if (versionInfoData == null || changelogData == null) {
             return;
         }
@@ -142,8 +143,13 @@ public static void Show() {
         using var changelogReader = new StreamReader(changelogData);
 
         string[] versions = versionInfoReader.ReadToEnd().SplitLines().ToArray();
+        string[] changelogLines = changelogReader.ReadToEnd().SplitLines().ToArray();
         string title = $"CelesteTAS {versions[0]} / Studio {versions[1]}";
 
-        new ChangelogDialog(title, changelogReader.ReadToEnd().SplitLines()).ShowModal();
+        if (changelogLines.Length == 0) {
+            return;
+        }
+
+        new ChangelogDialog(title, changelogLines).ShowModal();
     }
 }

Studio/CelesteStudio/Migration/Migrator.cs

@@ -114,19 +114,11 @@ The settings file should've opened itself.
                             throw new ArgumentOutOfRangeException();
                     }
                 }
-
-                string versionName = version.ToString(3);
-                if (asm.GetManifestResourceStream($"Changelogs/v{versionName}.md") is { } stream) {
-                    changelogs.Add((versionName, stream));
-                }
             }
         }
 
         Studio.Instance.Shown += (_, _) => {
-            foreach ((string? versionName, var stream) in changelogs) {
-                WhatsNewDialog.Show($"Whats new in Studio v{versionName}?", new StreamReader(stream).ReadToEnd());
-                stream.Dispose();
-            }
+            ChangelogDialog.Show();
         };
     }
 

Studio/CelesteStudio/Studio.cs

@@ -749,13 +749,8 @@ private MenuBar CreateMenu() {
         var quitItem = MenuEntry.File_Quit.ToAction(Application.Instance.Quit);
         var homeItem = MenuUtils.CreateAction("Open README...", Keys.None, () => ProcessHelper.OpenInDefaultApp("https://github.com/EverestAPI/CelesteTAS-EverestInterop"));
         var wikiItem = MenuUtils.CreateAction("Open wiki...", Keys.None, () => ProcessHelper.OpenInDefaultApp("https://github.com/EverestAPI/CelesteTAS-EverestInterop/wiki"));
-        var whatsNewItem = MenuUtils.CreateAction("What's new?", Keys.None, () => {
-            var asm = Assembly.GetExecutingAssembly();
-            // TODO: Don't hardcode the current changelog
-            if (asm.GetManifestResourceStream("Changelogs/v3.2.0.md") is { } stream) {
-                WhatsNewDialog.Show("What's new in Studio v3.2.0?", new StreamReader(stream).ReadToEnd());
-            }
-        });
+        var whatsNewItem = MenuUtils.CreateAction("What's new?", Keys.None, ChangelogDialog.Show);
+        whatsNewItem.Enabled = Assembly.GetExecutingAssembly().GetManifestResourceInfo("Changelog.md") != null;
         var aboutItem = MenuUtils.CreateAction("About...", Keys.None, () => {
             ShowAboutDialog(new AboutDialog {
                 ProgramName = "Celeste Studio",