Clickable links in warnings and errors

[lesnik512]

URLs in collector messages (GitLab settings and members pages in the CI/CD and Environments warnings and in the 403 checklist) are now links on the page, in both languages.

• messageParts(item) splits the rendered message, English text or the Russian rendering, into text and URL parts. Only http(s):// runs become links, and trailing punctuation such as . or ). stays outside the link.
• Each part renders through x-if, so the DOM holds one element per part, and pre-line still keeps the 403 checklist on separate lines.
• Links open in a new tab through the page's existing <base target="_blank">.
• No report change; this is 0.6.1.

Linkifying the rendered text rather than the URL params covers both languages and any future message without per-code markup.

Checked in the browser with the schema 4 fixture: the 403 checklist shows three working links in English and Russian, plus punctuation edge cases.