fix(locales): Replace hardcoded strings (#37788)

The Workflow Dependencies graph in the Actions run details view had
hard-coded English strings.
Also in projects view and contributors view I found some hard-coded
strings.
  
The other items in the issue #37787 (Summary / All jobs / Run Details /
Workflow file / Triggered via / Total duration) were already wired
through ctx.Locale.Tr; their translations just need to land in the
non-English locale_*.json files via the translation pipeline.



Fixes #37787

---------

Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: Claude (Opus 4.8) <noreply@anthropic.com>

web_src/js/modules/i18n.ts

@@ -0,0 +1,7 @@
+import {getCurrentLocale} from '../utils.ts';
+
+/** frontend `Locale.TrN`: pick the `_1` or `_n` form for `count` and interpolate `%d` */
+export function trN(count: number, form1: string, formN: string): string {
+  const form = new Intl.PluralRules(getCurrentLocale()).select(count) === 'one' ? form1 : formN;
+  return form.replace('%d', String(count));
+}