fix: #3636085 Replace copied text, placeholders and typos in the demo content

Replaces text copied from real universities and a press article, real-world names, the placeholders and a typo in the Educare demo content, for #3636085.

• The Stanford FAQ answer, the copied news paragraphs (now an original AI Research Center story), the "Sed ut perspiciatis" Lorem, the MIT history paragraph and the trustees line become original Eduzin text.
• john.doe@gmail.com becomes info@example.com, and the Jane Stanford Way and "10 Jane Street, New York" addresses become fictional Eduzin ones.
• "MISSION STSTEMENT" becomes "MISSION STATEMENT".
• 01-01-navigation-and-footer.feature now expects info@example.com and "1 University Avenue" in the footer.
• "Eduzin University" becomes "Educare University" in the footer and the AI Research Center article.
• The contact page and the contact_split pattern: the real Santa Clara address and phone number become "Educare University, 1 University Avenue, Eduzin" and "+1 (555) 010 0199".
• The event venue "The Schermerhorn Building" (a real Columbia University building) becomes "The Meridian Building" on 7 events.
• Program names that followed Harvard's concentration list become African and Diaspora Studies, Visual Arts and Film, Biophysics and Religious Studies, and the Harvard degree labels A.B., A.L.B. and A.L.M. become B.A., B.L.A. and M.L.A. 04-03-programs-study-levels.feature now expects "B.A.".

Exact-phrase web searches on every demo text string of 15 words or more in content/ and config/ (232 strings) found no text copied from other sites.

Thanks to Joachim Namyslo for filing the issue and finding the copied texts.

Notes

• Existing sites keep the old footer: Canvas copies the page region into canvas.page_variant.* at install, so the recipe change reaches new installs only.
• Lorem ipsum in the component defaults is untouched.
• The Varbase product copy in three slides of canvas.pattern.hero_slider and in the hero-slide and card-hero component defaults is Vardot's own text and stays as is. The component defaults come from the vartheme_bs5_educare theme, so any follow-up belongs there.
• The canvas page keeps its /african-and-african-american-studies alias, so that URL still works.

Remaining tasks

• Neither commit was run locally on this branch: the first passed gitlab-ci-local on the pre-rebase base (lint, Cspell, ESLint, the Drupal CMS Educare build, Functional 01, 02-news, Canvas 10-01 to 10-05), and f48d00d was not tested locally. This pipeline is their first run.

Written with Claude Code.

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