Change TIL Feedback from get -> post

endpoints.py

@@ -37,8 +37,8 @@ app.add_middleware(
     allow_headers=["*"],
 )
 
-@app.get("/til_feedback", tags=["til_feedback"])
-async def til_feedback_kickoff(content: List[str] = Query(...)) -> til.TilFeedbackResponse:
+@app.post("/til_feedback", tags=["til_feedback"])
+async def til_feedback_kickoff(content: List[str]) -> til.TilFeedbackResponse:
     separator = "\n* "
     content[0] = "* " + content[0]
     inputs = {"content": separator.join(content)}