update Australia svg

[chienleng]

The current Australia SVG is combined from 'states/territories' SVGs.

• NSW: https://github.com/opennem/openelectricity/blob/main/src/lib/components/info-graphics/system-snapshot/map/states/NSW.svelte)
• The container here: https://github.com/opennem/openelectricity/blob/main/src/lib/components/info-graphics/system-snapshot/map/Map.svelte

Task here is to simplify the paths:

• smaller size
• less jagged edges
• should be a drop-in replacement so the current placements of values, background colour adjustments and hover interactions should still work

[jamescrowley]

@chienleng is this still needed? I couldn't see an Australian flag in the repo anywhere.

[chienleng]

@chienleng is this still needed? I couldn't see an Australian flag in the repo anywhere.

Still needed. Just added more description above. Thanks.