Graph view: navigate to file when clicking on a node. Graph view: collision detection to avoid overlap. Graph view: allow scroll to see the entire picture. Graph view: better link placement. Graph view: scroll to center on load. Graph view: visually distinguish non-existent linked nodes. Graph view: hide orphan nodes for now. App: fix app loads at a small fixed size. App: fix developer tools being visible when app first loads. Explorer: warn about duplicate file names when renaming. Explorer: warn about forbidden characters in file names. Sidebar: sidebar title should not be select-able. Sidebar: click current tab again to collapse. Sidebar: add collapse button to each panel.