___ This med­i­ta­tion app is now worth $250 mil­lion and has Trump-relat­ed stress to thank (CNBC): “Med­i­ta­tion start-up Calm was so suc­cess­ful dur­ing a chaot­ic and stress­ful 2017 that Apple rec­og­nized it as the app of the year. “Well done, Calm,” Apple said in December. Now the San Fran­cis­co-based com­pa­ny, which to date has only raised…