fix(picker.list): better wrap settings for when wrapping is enabled

lua/snacks/picker/core/list.lua

@@ -81,6 +81,9 @@ function M.new(picker)
       foldmethod = "manual",
       cursorline = false,
       winhighlight = Snacks.picker.highlight.winhl("SnacksPickerList", { CursorLine = "Visual" }),
+      linebreak = true,
+      breakindent = true,
+      wrap = false,
     },
   })
   self.win = Snacks.win(win_opts)

lua/snacks/picker/format.lua

@@ -374,7 +374,7 @@ function M.diagnostic(item, picker)
     vim.list_extend(ret, M.severity(item, picker))
   end
 
-  local message = diag.message:gsub("\n", " ")
+  local message = diag.message
   ret[#ret + 1] = { message }
   Snacks.picker.highlight.markdown(ret)
   ret[#ret + 1] = { " " }