FIX: minor SK3 styling issues in Safari (#14121)

FIX: minor SK3 styling issues in Safari (#14121)

diff --git a/app/assets/stylesheets/common/select-kit/select-kit.scss b/app/assets/stylesheets/common/select-kit/select-kit.scss
index c309a58..0120ec1 100644
--- a/app/assets/stylesheets/common/select-kit/select-kit.scss
+++ b/app/assets/stylesheets/common/select-kit/select-kit.scss
@@ -72,13 +72,17 @@
     display: flex;
     align-items: stretch;
 
+    /* hide native indicator */
+    &::-webkit-details-marker {
+      display: none;
+    }
+
     .select-kit-header-wrapper {
       box-sizing: border-box;
       min-height: 28px;
       display: flex;
       flex: 1 0 auto;
       align-items: center;
-      height: 100%;
     }
 
     .d-icon-spinner {

GitHub sha: 8fa4849abc99b95f865466373ba2c9b7dc92b82f

This commit appears in #14121 which was approved by jjaffeux. It was merged by pmusaraj.