Page layout improvements

Octopus Deploy has recently made significant design updates to improve its user interface, addressing user feedback that described it as "messy" and "hard to navigate." Key changes include restructuring page layouts to enhance readability, optimizing page headings and breadcrumbs for better navigation, and repositioning the CREATE RELEASE button for easier access. Additional improvements involve simplifying loading animations, clarifying menu interaction states, and updating labels to align with page content. These enhancements aim to provide a more intuitive and seamless user experience, with ongoing efforts to gather feedback and preview future UX changes.