Fix dropdown UI for launch configs (Closes #1177) (#1186)

Co-authored-by: Alexandru Macocian <amacocian@microsoft.com>

Author: AlexMacocian

Daybreak/Views/LaunchConfigurationsView.razor

@@ -52,6 +52,7 @@
                             <FluentSelect TOption="string"
                                           Multiple="false"
                                           Width="100%"
+                                          Position="SelectPosition.Below"
                                           Items="@this.ViewModel.Executables"
                                           SelectedOption="@config.ExecutablePath"
                                           SelectedOptionChanged="@((newValue) => this.ViewModel.ExecutableChanged(config, newValue))">
@@ -70,6 +71,8 @@
                         <div class="launch-config-credentials-field">
                             <FluentSelect TOption="string"
                                           Multiple="false"
+                                          Width="100%"
+                                          Position="SelectPosition.Below"
                                           Items="@this.ViewModel.Credentials.Select(c => c.Identifier ?? string.Empty)"
                                           SelectedOption="@(config.Credentials?.Identifier ?? string.Empty)"
                                           SelectedOptionChanged="@((newValue) => this.ViewModel.CredentialsChanged(config, newValue))">

Daybreak/Views/LaunchConfigurationsView.razor.css

@@ -9,14 +9,22 @@
 
 .content {
     width: 100%;
-    height: 100%;
+    flex: 1;
+    min-height: 0;
     display: flex;
     flex-direction: column;
+    overflow: hidden;
+}
+
+.option-view-title {
+    flex-shrink: 0;
 }
 
 .launch-configs-list {
     display: flex;
     flex-direction: column;
+    flex: 1;
+    min-height: 0;
     overflow-y: auto;
     gap: 10px;
     max-width: 800px;
@@ -35,6 +43,7 @@
     border-top: 0px;
     border-left: 0px;
     border-right: 0px;
+    flex-shrink: 0;
 }
 
 .launch-config-identifier,
@@ -69,6 +78,32 @@
     width: 50%;
 }
 
+/* Limit dropdown height to prevent container overflow */
+.launch-config-executable-field ::deep fluent-select::part(listbox),
+.launch-config-credentials-field ::deep fluent-select::part(listbox) {
+    max-height: 150px;
+    overflow-y: auto;
+    overflow-x: hidden;
+}
+
+/* Scrollbar styling for the dropdown */
+.launch-config-executable-field ::deep fluent-select::part(listbox)::-webkit-scrollbar,
+.launch-config-credentials-field ::deep fluent-select::part(listbox)::-webkit-scrollbar {
+    width: 6px;
+}
+
+.launch-config-executable-field ::deep fluent-select::part(listbox)::-webkit-scrollbar-track,
+.launch-config-credentials-field ::deep fluent-select::part(listbox)::-webkit-scrollbar-track {
+    background: color-mix(in srgb, var(--neutral-fill-rest) 30%, transparent);
+    border-radius: 3px;
+}
+
+.launch-config-executable-field ::deep fluent-select::part(listbox)::-webkit-scrollbar-thumb,
+.launch-config-credentials-field ::deep fluent-select::part(listbox)::-webkit-scrollbar-thumb {
+    background: color-mix(in srgb, var(--neutral-fill-strong-rest) 80%, transparent);
+    border-radius: 3px;
+}
+
 /* Another alternative - target any text content */
 .launch-config-identifier-label ::deep *,
 .launch-config-executable-label ::deep *,