content(MK): apply proofreading corrections from owner + rename header menu

Applies the corrections from "msos web corrections.docx" across 6 Macedonian
pages, plus two global fixes, plus matching English tweaks.

Per-page (MK):
- Landing: hero eyebrow/subtitle, story section, testimonials, FAQ block
- About us / Our team: "Раководен тим" -> "Управен одбор", team names to
  Cyrillic, Marko's title, removed duplicate top gradient + added spacing,
  fixed the broken "Still have questions" footer to match the landing page
- MSOS Hub: title widow (nbsp), hub descriptions
- FAQ: intro + 9 answer corrections (also fixed leftover English fragments)
- Become a Member: card label, removed stats note, consistent "ти" voice,
  Cyrillic names, form step + success text
- Support: title, subtitle, community section, support options

Global (all MK pages): header menu "Нашиот тим, мисија, визија и вредности"
-> "Нашиот тим"; напатница -> напотница. Visible punctuation dashes changed
to commas per owner preference.

English: testimonials section (en/index.html) and two document answers
(en/faq) updated to match.

Adds docs/MK-PROOFREADING.md (6 proofread, 63 remaining of 69 MK pages).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

en/faq/index.html

@@ -261,7 +261,7 @@
                     <details class="faq-q">
                         <summary>Which documents should I prepare and translate before I leave Macedonia?</summary>
                         <div class="faq-a">
-                            <p>Prepare and translate your diploma, transcripts, birth certificate and criminal-record certificate in advance, because it is much harder to obtain and legalise them once you are in Slovenia.</p>
+                            <p>Prepare and translate your diploma, transcripts and criminal-record certificate in advance, because it is much harder to obtain and legalise them once you are in Slovenia.</p>
                             <a href="../student-welcome-guide/document-preparation/">Read more in the guide <i class="fas fa-arrow-right" aria-hidden="true"></i></a>
                         </div>
                     </details>
@@ -302,7 +302,7 @@
                     <details class="faq-q">
                         <summary>Which documents do I need for the permit?</summary>
                         <div class="faq-a">
-                            <p>You typically need your enrolment certificate, a valid passport, proof of sufficient means, health insurance, a criminal-record certificate and the required fees.</p>
+                            <p>You typically need your enrolment certificate, a valid passport, proof of sufficient means, health insurance, a criminal- and penal-record certificate and the required fees.</p>
                             <a href="../student-welcome-guide/student-residence-permit/">Read more in the guide <i class="fas fa-arrow-right" aria-hidden="true"></i></a>
                         </div>
                     </details>