remove obsolete files

website/src/lib/docs/ko/home/funding.mdx

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-<script>
-    import { HeartHandshake } from '@lucide/svelte';
-</script>
-
-## <HeartHandshake size="18" class="inline-block align-baseline" /> Help keep the website free (and ad-free)
-
-Each time you add or move GPS points, our servers calculate the best route on the road network.
-We also use APIs from <a href="https://maptiler.com" target="_blank">MapTiler</a> to display beautiful maps, retrieve elevation data and allow you to search for places.
-
-Unfortunately, this is expensive.
-If you enjoy using this tool and find it valuable, please consider making a small donation to help keep the website free and ad-free.
-
-Thank you very much for your support! ❤️

website/src/lib/docs/ko/home/mapbox.mdx

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-Mapbox is the company that provides some of the beautiful maps on this website.
-They also develop the <a href="https://github.com/mapbox/mapbox-gl-js" target="_blank">map engine</a> which powers **gpx.studio**.
-
-We are incredibly fortunate and grateful to be part of their <a href="https://mapbox.com/community" target="_blank">Community</a> program, which supports nonprofits, educational institutions, and positive impact organizations.
-This partnership allows **gpx.studio** to benefit from Mapbox tools at discounted prices, greatly contributing to the financial viability of the project and enabling us to offer the best possible user experience.

website/src/lib/docs/ko/home/translation.mdx

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-<script>
-    import { Languages } from '@lucide/svelte';
-</script>
-
-## <Languages size="18" class="inline-block align-baseline" /> Translation
-
-이 웹사이트는 협업 번역 플랫폼을 통해 자원봉사자들이 번역하고 있습니다.<a href="https://crowdin.com/project/gpxstudio" target="_blank">Crowdin 프로젝트</a>에서 번역을 추가하거나 개선하여 기여할 수 있습니다.
-
-새로운 언어로 번역을 시작하고 싶다면, <a href="#contact">연락</a>해 주세요.
-
-여러분의 도움이 큰 힘이 됩니다!