Blossoming with meaning. The inspiration behind Lady Gaga naming her daughter Rose comes from the song “La Vie En Rose,” an insider told People Thursday. Gaga famously covered the song in her 2018 film “A Star Is Born.” The musician starred in “A Star Is Born” alongside Bradley Cooper, who also produced and directed the film. The movie follows a seasoned, hard-drinking musician named Jackson Maine (Cooper) who falls in love with a struggling singer-songwriter named Ally (Gaga), helping launch her into massive stardom while his own career and personal life spiral due to addiction. It was actually Gaga’s real-life rendition of “La Vie En…