refactor: rename JsonCrack to JSONCrack for consistency

refactor: update image preview handling by removing related state and props

feat: introduce JSONCrackBrandLogo component for branding

fix: update imports to use JSONCrackBrandLogo in Footer and Navbar

refactor: simplify CustomNode and TextNode components by removing imagePreviewEnabled prop

fix: update README.md to reflect changes in JSONCrack component props

chore: add JSONCrackComponent and associated styles for improved structure

refactor: update parser to remove imagePreviewEnabled option and simplify logic

refactor: adjust calculateNodeSize function to remove imagePreviewEnabled parameter