By Lucy Thornton Brianna Ghey’s mum has released a five-point plan to help save children from the dangers of online trolls. Esther Ghey launched a campaign to hold big tech companies to account after her 16-year-old daughter was stabbed to death by Eddie Ratcliffe, and Scarlett Jenkinson, both now 16. The vile pair described trans Brianna as “it” and sent “dehumanising” messages over social media. Esther, 37, revealed she also received horrific transphobic messages and others telling her she was a failure as a mother. She said: “The online world is toxic. There is so much trolling and abuse. I…