Left sidebar, right map, and a landing page in the form of a modal is one pattern. Optional top bar with breadcrumbs can also be helpful.
Relatedly, there's a bit of a weird hack I use so that one logical page of an app can control the sidebar and map from the same component. Worth exploring how that should work. Or maybe letting sveltekit manage multiple pages is simpler, and each page manages its own map component. The trick there is to preserve the same map across pages, not reloading.
Left sidebar, right map, and a landing page in the form of a modal is one pattern. Optional top bar with breadcrumbs can also be helpful.
Relatedly, there's a bit of a weird hack I use so that one logical page of an app can control the sidebar and map from the same component. Worth exploring how that should work. Or maybe letting sveltekit manage multiple pages is simpler, and each page manages its own map component. The trick there is to preserve the same map across pages, not reloading.