Allow Search function to also surface Pinboards by searching their Title

Currently, searching only surfaces clipboard contents, as well as any titles we've given them which is great. I also think it'd be really helpful to surface a Pinboard when searching for any keywords in its title. That's because we might have it by category, and the elements we're pasting may not have it in their name or context in anyway (e.g. I have a Pasteboard for Notion, but none of the clipboard content in it, has "Notion" in its contents or title).