Add default search form background for community.

src/app/openaireLibrary

@@ -1 +1 @@
-Subproject commit a41ef51cda49c26cf35460aea273acc6b1f9896e
+Subproject commit aaf8c50c684cc3a62f6f1dff739c5e2564c111be

src/assets/common-assets

@@ -1 +1 @@
-Subproject commit dfefbe4421d15e05f64bbde27ad68b2ab9363f2f
+Subproject commit d6befee58de8fcb89e27d0c3403fd937b2e1552c

src/assets/community.less

@@ -5,6 +5,7 @@
 @import "common-assets/less/linking";
 
 @global-primary-gradient: none;
+@general-search-form-background: fade(@global-primary-background, 15%);
 
 #joinAndInviteBtn {
   position: fixed;