Global Search - Fix Input Border

This change fices a regression
from the Header Search refactor.

This fixes the off color
border added by GlInput.

app/assets/stylesheets/startup/startup-dark.scss

@@ -1832,6 +1832,7 @@ body.gl-dark .header-search svg {
 body.gl-dark .header-search input {
   background-color: transparent;
   color: rgba(250, 250, 250, 0.8);
+  box-shadow: inset 0 0 0 1px rgba(250, 250, 250, 0.4);
 }
 body.gl-dark .header-search input::placeholder {
   color: rgba(250, 250, 250, 0.8);

app/assets/stylesheets/themes/theme_helper.scss

@@ -154,6 +154,7 @@
     input {
       background-color: transparent;
       color: rgba($search-and-nav-links, 0.8);
+      box-shadow: inset 0 0 0 1px rgba($search-and-nav-links, 0.4);
 
       &::placeholder {
         color: rgba($search-and-nav-links, 0.8);

ee/app/assets/stylesheets/startup/startup-dark.scss

@@ -1832,6 +1832,7 @@ body.gl-dark .header-search svg {
 body.gl-dark .header-search input {
   background-color: transparent;
   color: rgba(250, 250, 250, 0.8);
+  box-shadow: inset 0 0 0 1px rgba(250, 250, 250, 0.4);
 }
 body.gl-dark .header-search input::placeholder {
   color: rgba(250, 250, 250, 0.8);