i18n(de): update `basics/astro-pages.mdx` 
                                
                                
                                    
                                        
                                        
                                    
                                    
                                    
Description (required)
- update basics/astro-pages.mdx
- #1442
- #1434
- #1510
- #1538
- #1638
- #2091
- #2133
- #2409
- #2371
- no real changes in #2546
- no translation changes from #3042
- #4610
- no translation changes from #4854
- #5128
- #5205
- #5240
- #5364
- #5765
- #6267
- remove paragraph (I cannot find the commit where this change happened in the original locale) (https://github.com/withastro/docs/pull/9759/commits/ca13a0049ad3235853df81fdcc43a39d065dd333)
- #6620
- #8495
- #8573
- #9336
- fix links in guides/rss.mdxandguides/markdown-content.mdxfiles which lead to this page
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