Noam Shuster-Eliassi was supposed to debut her one-woman standup comedy show, “Coexistence My Ass,” in the U.S. this year. Instead, in the midst of the coronavirus outbreak, she tried out the routine in Israel, performing in front of strangers who crowded into a noisy lobby. Later, she joined them for Passover at tables laden with watermelon and wine. The atrium echoed with the sound of laughter, singing, coughing, and conversations in Hebrew and Arabic. Almost no one wore a mask. This was the scene inside the Dan Jerusalem Hotel, where…