feat(loader) - Update Spinner to SHINE styles; rename to Loader #2444

Job	Run time
Lint / Lint	45s
Unit Tests (stacks-svelte) / Unit Tests (stacks-svelte)	2m 27s
Unit Tests (stacks-utils) / Unit Tests (stacks-utils)	33s
Less Tests / Less Tests	31s
A11y Tests / A11y Tests	2m 7s
Visual Regression Tests / Visual Regression Tests	8m 10s
Build / Build	1m 8s
Unit Tests / Unit Tests	2m 4s
Release (latest or beta)	-1s
Update main site stackoverflow.design	0s
	17m 44s

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