Fix blank page for invalid user queries
Fix blank page for invalid user queries

Add a "deprecated" information

See https://github.com/marienfressinaud/FreshRSS/issues/625

plopoyop/FreshRSS,romibi/FreshRSS,marienfressinaud/FreshRSS,asmundg/FreshRSS,aledeg/FreshRSS,superboum/FreshRSS,samuelstein/FreshRSS,Alkarex/FreshRSS,Dolomich/FreshRSS,Dolomich/FreshRSS,Alkarex/FreshRSS,Alkarex/FreshRSS,marienfressinaud/FreshRSS,asmundg/FreshRSS,Alkarex/FreshRSS,romibi/FreshRSS,romibi/FreshRSS,marienfressinaud/FreshRSS,romibi/FreshRSS,samuelstein/FreshRSS,aledeg/FreshRSS,Dolomich/FreshRSS,FreshRSS/FreshRSS,plopoyop/FreshRSS,samuelstein/FreshRSS,asmundg/FreshRSS,aledeg/FreshRSS,FreshRSS/FreshRSS,FreshRSS/FreshRSS,aledeg/FreshRSS,superboum/FreshRSS,FreshRSS/FreshRSS,superboum/FreshRSS,marienfressinaud/FreshRSS