Danielle Fishel has thanked fans for their “love and support” following her cancer diagnosis. The 43-year-old actress – who is best known for playing Topanga Lawrence on the teen sitcom ‘Boy Meets World’ – recently revealed that she’s been diagnosed with “a form of breast cancer”, and she’s now taken to social media to thank her fans for their outpouring of support. Danielle said on Instagram: “I wanted to do a quick video to say thank you so much from the bottom of my heart and from my entire family for the enormous outpouring of love and support and encouragement you have sent me since I ann…