!1747 fix(#I46OBU): textarea element not fill the width in Dialog body

* chore: bump version to 5.7.2
* chore: 打包脚本与样式
* style: 微调 inline 模式下 textarea 组件宽度
* feat: 重构 Textarea 组件结构

src/BootstrapBlazor/BootstrapBlazor.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Razor">
 
   <PropertyGroup>
-    <Version>5.7.1</Version>
+    <Version>5.7.2</Version>
   </PropertyGroup>
 
   <ItemGroup Condition="'$(TargetFramework)' == 'net5.0'">

src/BootstrapBlazor/Components/Textarea/Textarea.razor

@@ -1,5 +1,5 @@
 @namespace BootstrapBlazor.Components
-@inherits TextareaBase
+@inherits ValidateBase<string>
 
 @if (IsShowLabel)
 {

src/BootstrapBlazor/Components/Textarea/Textarea.razor.cs

@@ -5,14 +5,14 @@
 namespace BootstrapBlazor.Components
 {
     /// <summary>
-    /// Textarea 组件基类
+    /// 
     /// </summary>
-    public abstract class TextareaBase : ValidateBase<string?>
+    public partial class Textarea
     {
         /// <summary>
         /// 获得 class 样式集合
         /// </summary>
-        protected string? ClassName => CssBuilder.Default("form-control")
+        private string? ClassName => CssBuilder.Default("form-control")
             .AddClass(CssClass).AddClass(ValidCss)
             .Build();
     }

src/BootstrapBlazor/wwwroot/css/bootstrap.blazor.css

@@ -812,7 +812,7 @@ input:disabled,
 
 /*Textarea*/
 @media (min-width: 576px) {
-    .row textarea {
+    .row.form-inline textarea.form-control {
         width: calc(100% - 100px);
     }
 }