Create scss for SearchButton

apps/app/src/components/PageControls/SearchButton.module.scss

@@ -0,0 +1,14 @@
+@use '@growi/core/scss/bootstrap/init' as bs;
+
+@use '@growi/ui/scss/atoms/btn-muted';
+
+@use './button-styles';
+
+.btn-search :global {
+  @extend %btn-basis;
+}
+
+// == Colors
+.btn-search {
+  @include btn-muted.colorize(bs.$success);
+}