[FEATURE] use goto instead of href

[Polygons1]

Is your feature request related to a problem? Please describe.

sidebar navigation is not working in Safari

Describe the solution you'd like

the use of goto from $app/navigation instead of <a {href}> in ui/src/lib/components/ui/SidebarButton.svelte

Describe alternatives you've considered

Additional context

this is the built in solution for SvelteKit