fix(refile): allow slash to be omitted when refiling to file

Author: kristijanhusak

Diff for: lua/orgmode/capture/init.lua

@@ -393,9 +393,13 @@ function Capture:get_destination()
       return false
     end
 
-    local path = destination:match('^.*%.org/')
+    local path = destination:match('^.*%.org/?')
     local headline_title = path and destination:sub(#path + 1) or ''
 
+    if not vim.endswith(path, '/') then
+      path = path .. '/'
+    end
+
     if not valid_destinations[path] then
       utils.echo_error(
         ('"%s" is not a is not a file specified in the "org_agenda_files" setting. Refiling cancelled.'):format(path)