Make filter editing nicer.
Make filter editing nicer.

algernon/elfeed,holomorph/elfeed,jinnovation/elfeed,skeeto/elfeed,daimrod/elfeed,jinnovation/elfeed,seblemaguer/elfeed,abo-abo/elfeed,skeeto/elfeed,seblemaguer/elfeed,holomorph/elfeed,algernon/elfeed,emacsmirror/elfeed,daimrod/elfeed,emacsmirror/elfeed