Lifeline re-rework from a lifeline main

@heme725 I think you are painting the optimal situation for her passive where she disengages from combat for free, is able to make it to wherever the knocked player is without getting absolutely clapped, the enemy team doesn't have a single grenade or a silence, they don't focus the teammate you left, then focus lifeline, or pincer the revive shield if it's a 2v1 and focus the lifeline and knock the rez. So far it seems to help in 1v1 situations, when my team is already in a position of strength but a teammate got knocked, or when we are at a distance(The old revive helped in all these situations as well). Also I don't understand why support legends aren't supposed to have abilities that help themselves. No other character in the game is limited like this. Lifeline's passive doesn't even effect the game until she is already at a disadvantage, and now requires you to be up your teammates' * the entire match to ensure you can get it off. If her tactical and ult were better it wouldn't be an issue, but having it be a great but situational ability combined with a subpar tactical and the worst ult in the game absolutely sucks for me so far...Also cant gibby drop ult on top of his dome to stop a push while rezzing and wraith just portals gibby and the rez out by the time the bombardment is over? It's not ironclad safe, but neither is lifeline trying to get her autorez off when a team is now pushing a knock.