Fixed: Selection of last added custom filter

Plus some translations and typos

(cherry picked from commit 1f97679868012b70beecc553557e96e6c8bc80e3)

src/NzbDrone.Core/Localization/Core/en.json

@@ -186,6 +186,7 @@
   "CreateEmptyAuthorFolders": "Create empty author folders",
   "CreateEmptyAuthorFoldersHelpText": "Create missing author folders during disk scan",
   "CreateGroup": "Create group",
+  "CustomFilter": "Custom Filter",
   "CustomFormat": "Custom Format",
   "CustomFormatScore": "Custom Format Score",
   "CustomFormatSettings": "Custom Format Settings",
@@ -470,6 +471,7 @@
   "Iso639-3": "ISO 639-3 language codes, or 'null', comma separated",
   "ItsEasyToAddANewAuthorOrBookJustStartTypingTheNameOfTheItemYouWantToAdd": "It's easy to add a New Author or Book just start typing the name of the item you want to add",
   "Label": "Label",
+  "LabelIsRequired": "Label is required",
   "Language": "Language",
   "Large": "Large",
   "LastDuration": "Last Duration",