Change `SvelthreeLogger.get_comp_name` to strip more suffixes

[Vatroslav Vrbanic]

After reinstalling modules in the test-scenes project, I started getting e.g. Scene2 as comp.constructor.name, so the shadow DOM creation logic which relies on the returned logic:

svelthree/src/lib/logic/shared/shadow_dom.ts

Lines 42 to 55 in 132baaf

 if (c_name !== "Scene") { 
 	if (our_parent_shadow_dom_el) { 
 		our_parent_shadow_dom_el.appendChild(shadow_dom_el) 
 		return shadow_dom_el 
 	} else { 
 		console.error( 
 			`SVELTHREE > ${c_name} > create_shadow_dom_el > couldn't append shadow dom, no 'our_parent_shadow_dom_el'!`, 
 			our_parent_shadow_dom_el 
 		) 
 		return null 
 	} 
 } else { 
 	return shadow_dom_el 
 } 

wasn't returning the correct shadow_dom_el / failed.

So, a quick fix would be to change the replace search-string to a RegEx catching any underscores and numbers.
Fun fact: I asked ChatGPT what this kind of RegEx would look like, it gave me: [\d_]/g.

Atm, the SvelteKit / Vite classes suffixing (if duplicate names) / chunks naming behavior a bit of a black box to me and should be examined / nailed down, see #193