If the seedling's main stem was not broken you should be ok. Even if tall skinny s'lings do fall over they can usually be saved.
Most important thing at first is to support the plant. Is that some kind of golf tee? Anyway, that support is too big as it would surely interfere with future growth if allowed to stay where it is. It is just too invasive. I buy 12-inch bamboo skewers and cut them in half. Then I cut a pipecleaner in half and twist the pipecleaner onto the top of the skewer. That's your brace. Try to get the pipecleaner to circle the main stem between the first and second sets of leaves. It may be necessary to adjust or remove the brace as the plant grows. One tip -- if you can identify just where the stem was most stressed, where it was bent, you can make sure to bury that trouble spot under the soil. Will help speed up the process where the plant grows more roots to support the plant. As we know, transplanted plants will spend most of their energy growing a root mass that pretty much fills the pot. Going from a small pot to a large pot can mean waiting a couple weeks with little above-ground growth visible. The plant is mostly growing roots. Then all of a sudden, when the plant is 100-150% as tall as its pot, you will see a lot of bright yellow new growth as you add an inch a day to height. That is the beginning of your veg cycle.
Good luck, BigSteve.