Polish errors page: ellipsis on Configure alerts, center loading spinner

Add a U+2026 ellipsis to the 'Configure alerts' button on the errors
list and detail pages to signal it opens a panel rather than acting
inline. Center the error-detail Suspense fallback by giving it h-full
so the spinner sits in the middle of the page instead of pinned to
the top.

Author: D-K-P

apps/webapp/app/routes/_app.orgs.$organizationSlug.projects.$projectParam.env.$envParam.errors.$fingerprint/route.tsx

@@ -331,16 +331,16 @@ export default function Page() {
             LeadingIcon={BellAlertIcon}
             leadingIconClassName="text-alerts"
           >
-            Configure alerts
+            Configure alerts…
           </LinkButton>
         </PageAccessories>
       </NavBar>
 
       <PageBody scrollable={false}>
         <Suspense
           fallback={
-            <div className="my-2 flex items-center justify-center">
-              <div className="mx-auto flex items-center gap-2">
+            <div className="flex h-full items-center justify-center">
+              <div className="flex items-center gap-2">
                 <Spinner />
                 <Paragraph variant="small">Loading error details…</Paragraph>
               </div>

apps/webapp/app/routes/_app.orgs.$organizationSlug.projects.$projectParam.env.$envParam.errors._index/route.tsx

@@ -464,7 +464,7 @@ function FiltersBar({
           LeadingIcon={BellAlertIcon}
           leadingIconClassName="text-alerts"
         >
-          Configure alerts
+          Configure alerts…
         </LinkButton>
         {list && <ListPagination list={list} />}
       </div>