feat: show QuickStartPopup on every launch + custom app icon

- QuickStartPopup now appears on every startup (not just first run)
- Remove FirstRun flag from AppConfig (no longer needed)
- Add app.ico: dark background with green→yellow progress bar (16/32/48px)
- Set ApplicationIcon in .csproj + Inno Setup installer icon

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: Numb006

TimeboxBar/Core/AppConfig.cs

@@ -23,7 +23,6 @@ public class AppConfig
         [DataMember] public int    QuickStart2    { get; set; }
         [DataMember] public bool   PlaySound      { get; set; }
         [DataMember] public string Language       { get; set; } // "auto", "de", "en"
-        [DataMember] public bool   FirstRun       { get; set; }
 
         public bool IsBottom          => Position == "Bottom";
         public int  ClampedBarHeight  => Math.Max(MinBarHeight, Math.Min(MaxBarHeight, BarHeight));
@@ -46,7 +45,6 @@ private void ApplyDefaults()
             QuickStart2    = 45;
             PlaySound      = true;
             Language       = "auto";
-            FirstRun       = true;
         }
 
         private static string ConfigPath => Path.Combine(

TimeboxBar/TimeboxBar.csproj

@@ -14,6 +14,7 @@
     <FileAlignment>512</FileAlignment>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <ApplicationManifest>app.manifest</ApplicationManifest>
+    <ApplicationIcon>app.ico</ApplicationIcon>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -56,6 +57,7 @@
     <EmbeddedResource Include="Properties\Resources.resx" />
     <EmbeddedResource Include="Properties\Resources.de.resx" />
     <None Include="app.manifest" />
+    <None Include="app.ico" />
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
 </Project>

TimeboxBar/UI/BarForm.cs

@@ -136,12 +136,7 @@ protected override void OnHandleCreated(EventArgs e)
             if (!hotkeyOk)
                 _trayIcon.ShowBalloonTip(4000, "TimeboxBar", S.HotkeyConflict, ToolTipIcon.Warning);
 
-            if (_config.FirstRun)
-            {
-                _config.FirstRun = false;
-                _config.Save();
-                BeginInvoke(new System.Action(ShowQuickStartPopup));
-            }
+            BeginInvoke(new System.Action(ShowQuickStartPopup));
         }
 
         protected override void OnFormClosed(FormClosedEventArgs e)

TimeboxBar/app.ico

@@ -16,6 +16,7 @@ DefaultGroupName={#MyAppName}
 DisableProgramGroupPage=yes
 OutputDir=Output
 OutputBaseFilename=TimeboxBar-{#MyAppVersion}-Setup
+SetupIconFile=..\TimeboxBar\app.ico
 Compression=lzma2
 SolidCompression=yes
 WizardStyle=modern