doc(Chart): update Chart line type sample code (#2408)

* refactor: 重构代码

* chore: bump version 8.0.3-beta01

Author: ArgoZhang

src/BootstrapBlazor.Server/Components/Samples/Charts/Line.razor.cs

@@ -23,8 +23,8 @@ public partial class Line
     [NotNull]
     private ConsoleLogger? Logger { get; set; }
 
-    private ChartPointStyle[] chartPointStyles = new[]
-    {
+    private readonly ChartPointStyle[] chartPointStyles =
+    [
         ChartPointStyle.Circle,
         ChartPointStyle.Cross,
         ChartPointStyle.CrossRot,
@@ -35,7 +35,7 @@ public partial class Line
         ChartPointStyle.RectRot,
         ChartPointStyle.Star,
         ChartPointStyle.Triangle,
-    };
+    ];
 
     /// <summary>
     /// <inheritdoc/>
@@ -237,7 +237,7 @@ protected override async Task OnAfterRenderAsync(bool firstRender)
 
         if (firstRender)
         {
-            Module = await JSRuntime.InvokeAsync<IJSObjectReference>("import", $"Components/Samples/Charts/Line.razor.js?v={JSVersionService.GetVersion()}");
+            Module = await JSRuntime.InvokeAsync<IJSObjectReference>("import", $"./Components/Samples/Charts/Line.razor.js?v={JSVersionService.GetVersion()}");
 
             //随机生成一组数据
             //Randomly generate a set of data

src/BootstrapBlazor.Server/Components/Samples/Charts/Line.razor.js

@@ -1,6 +1,6 @@
 //通过相对路径导入BootstrapBlazor.Chart的Chart.JS模块
-import '../../../../_content/BootstrapBlazor.Chart/js/chart.js'
-import Data from '../../../../_content/BootstrapBlazor/modules/data.js'
+import '../../../_content/BootstrapBlazor.Chart/js/chart.js'
+import Data from '../../../_content/BootstrapBlazor/modules/data.js'
 
 export function lineChart(canvasId, chartData) {
     const ctx = document.getElementById(canvasId);

src/BootstrapBlazor/BootstrapBlazor.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Razor">
 
   <PropertyGroup>
-    <Version>8.0.2</Version>
+    <Version>8.0.3-beta01</Version>
   </PropertyGroup>
 
   <ItemGroup Condition="'$(TargetFramework)' == 'net5.0'">