Remove extra spaces from search API queries and public account headers (fixes #7129) (#7152)

app/services/search_service.rb

@@ -4,7 +4,7 @@ class SearchService < BaseService
   attr_accessor :query, :account, :limit, :resolve
 
   def call(query, limit, resolve = false, account = nil)
-    @query   = query
+    @query   = query.strip
     @account = account
     @limit   = limit
     @resolve = resolve

app/views/accounts/_header.html.haml

@@ -6,8 +6,8 @@
   .card__bio
     %h1.name
       %span.p-name.emojify= display_name(account)
-      %small
-        %span @#{account.local_username_and_domain}
+      %small<
+        %span>< @#{account.local_username_and_domain}
         = fa_icon('lock') if account.locked?
 
     - if Setting.show_staff_badge