Fix various typos with codespell

Found via `codespell -q 3 -S ./thirdparty,*.po,./DONORS.md -L ackward,ang,ans,ba,beng,cas,childs,childrens,dof,doubleclick,fave,findn,hist,inout,leapyear,lod,nd,numer,ois,ony,paket,seeked,sinc,switchs,te,uint`

scene/resources/resource_format_text.cpp

@@ -1399,7 +1399,7 @@ String ResourceFormatLoaderText::get_resource_type(const String &p_path) const {
 		return String();
 	}
 
-	//for anyhting else must test..
+	// ...for anything else must test...
 
 	FileAccess *f = FileAccess::open(p_path, FileAccess::READ);
 	if (!f) {