Fixed spacing between provider dialogs fields

app/MindWork AI Studio/Settings/ProviderDialog.razor

@@ -9,6 +9,7 @@
                 T="string"
                 @bind-Text="@this.DataInstanceName"
                 Label="Instance Name"
+                Class="mb-3"
                 Adornment="Adornment.Start"
                 AdornmentIcon="@Icons.Material.Filled.Lightbulb"
                 AdornmentColor="Color.Info"
@@ -16,7 +17,7 @@
             />
             
             @* ReSharper disable once CSharpWarnings::CS8974 *@
-            <MudSelect @bind-Value="@this.DataProvider" Label="Provider" OpenIcon="@Icons.Material.Filled.AccountBalance" AdornmentColor="Color.Info" Adornment="Adornment.Start" Validation="@this.ValidatingProvider">
+            <MudSelect @bind-Value="@this.DataProvider" Label="Provider" Class="mb-3" OpenIcon="@Icons.Material.Filled.AccountBalance" AdornmentColor="Color.Info" Adornment="Adornment.Start" Validation="@this.ValidatingProvider">
                 @foreach (Providers provider in Enum.GetValues(typeof(Providers)))
                 {
                     <MudSelectItem Value="@provider">@provider</MudSelectItem>
@@ -28,6 +29,7 @@
                 T="string"
                 @bind-Text="@this.dataAPIKey"
                 Label="API Key"
+                Class="mb-3"
                 Adornment="Adornment.Start"
                 AdornmentIcon="@Icons.Material.Filled.VpnKey"
                 AdornmentColor="Color.Info"