AxiosNewslettersAxios ProAxios LiveAxios EntertainmentKerry Flynn, Sara FischerData: Luma Partners; Chart: Axios VisualsAd tech, marketing tech and digital content deals are surging to the highest point since the first half of 2022, shortly after the 2021 advertising boom. Why it matters: The recent M&A uptick stems from a comeback in digital ad spend and increased attention on the companies supporting these media channels to simplify the market.Driving the news: Video platform Brightcove agree...