Fixes select colors

Author: nzaytsev

src/webviews/apps/plus/home/components/branch-threshold-filter.ts

@@ -9,6 +9,7 @@ import '../../../shared/components/menu/index';
 import '../../../shared/components/menu/menu-item';
 import '../../../shared/components/menu/menu-list';
 import '../../../shared/components/overlays/popover';
+import '../../../shared/styles/select.scss';
 
 @customElement('gl-branch-threshold-filter')
 export class GlBranchThresholdFilter extends GlElement {

src/webviews/apps/shared/styles/select.scss

@@ -0,0 +1,4 @@
+select option {
+  color: var(--vscode-foreground);
+	background-color: var(--vscode-dropdown-background);
+}