Appmanager: Fix dropdown network select color mismatch

Change-Id: I7be839d182ef99bf03d4645d9a0cb56153bf262c
diff --git a/core/installer/welcome/stat/appmanager.css b/core/installer/welcome/stat/appmanager.css
index f8ee945..ca4b221 100644
--- a/core/installer/welcome/stat/appmanager.css
+++ b/core/installer/welcome/stat/appmanager.css
@@ -335,3 +335,11 @@
 .search-progress-icon {
   background-image: var(--pico-icon-loading) !important;
 }
+
+details.dropdown summary:not([role]) {
+  color: var(--pico-color);
+}
+
+details[open] > summary:not([role]):not(:focus) {
+  color: var(--pico-color);
+}