feat(i18n): add language trainer SEO content and update home page metadata

- Introduced a new section for language trainers in multiple languages (Cebuano, German, English, Spanish, French) to enhance user guidance on beginner courses.
- Updated home page SEO metadata to reflect the addition of language courses, improving search visibility and user engagement.
- Enhanced the NoLoginView component to display the new language trainer information, providing users with clear insights into available resources.

frontend/src/i18n/locales/en/home.json

@@ -80,6 +80,30 @@
                 "title": "Get started",
                 "text": "You can already use, test and give feedback. Register via “{register}” or start the random chat."
             },
+            "languageTrainerSeo": {
+                "title": "Language trainers for everyday use (beginners)",
+                "introBefore": "YourPart offers two",
+                "beginnerLabel": "guided beginner courses",
+                "introMiddle": "in the",
+                "vocabTrainerLinkText": "vocabulary trainer",
+                "bisayaForGerman": "Bisaya for German-speaking learners",
+                "andConnector": "and",
+                "germanForBisaya": "German for Cebuano/Bisaya speakers",
+                "introAfter": "They focus on clear sentence patterns for common daily situations, not literary perfection.",
+                "honestLabel": "Honest classification:",
+                "honestTextBefore": "These courses do not lead to native-level fluency and do not replace exams or intensive classes. As a rough orientation, consistent use typically leads to",
+                "rangeLabel": "solid A1 to early A2 ability in familiar contexts",
+                "honestTextMiddle": "and often in practice",
+                "belowA2Label": "slightly below full A2",
+                "honestTextAfter": "depending on practice time and additional speaking work.",
+                "germanSectionTitle": "German for Cebuano/Bisaya speakers",
+                "germanSectionTextBefore": "Topics include greetings, doctor visits, school, appointments, forms, work, and misunderstandings. The goal is",
+                "germanSectionStrong": "reliable foundations and first longer everyday responses",
+                "germanSectionTextAfter": "not a promise of an official exam level.",
+                "bisayaSectionTitle": "Bisaya for German-speaking learners",
+                "bisayaSectionText": "Structured progress from basics to practical scenes such as family, visits, health, shopping, directions, and neighborhood communication with vocabulary, pattern drills, and short free production tasks.",
+                "allCoursesLabel": "All courses:"
+            },
             "randomchat": "Random chat",
             "startrandomchat": "Start random chat",
             "login": {