Resolve #5213

* truncate user information if it is too long

Some AP software allows for user names or summaries to be very long.
Misskey can not handle this and the profile page can not be opened and
no activities from such users can be seen.

Instead, the user name and summary are cut off after the maximum length
so misskey can still process the activities of the profile.

Co-authored-by: Toast <toast@toast.cafe>

* fix code style

Co-authored-by: Toast <toast@toast.cafe>
Co-authored-by: syuilo <Syuilotan@yahoo.co.jp>

* New translations disable-timelines.md (Chinese Simplified)

* New translations api.md (Chinese Simplified)

* New translations api.md (Chinese Simplified)

* New translations ja-JP.yml (Chinese Simplified)

* New translations api.md (Chinese Simplified)

* New translations api.md (Chinese Simplified)

* New translations api.md (Chinese Simplified)

* New translations create-plugin.md (Chinese Simplified)

* New translations stream.md (Chinese Simplified)

* New translations ja-JP.yml (German)

* New translations ja-JP.yml (English)

* New translations note.md (English)

* New translations links.md (English)

* New translations ja-JP.yml (Korean)

* New translations ja-JP.yml (Russian)

* New translations troubleshooting.md (Russian)

* New translations ja-JP.yml (Russian)

* New translations ja-JP.yml (English)

* New translations ja-JP.yml (Chinese Simplified)

* New translations ja-JP.yml (Esperanto)

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* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations ja-JP.yml (Esperanto)

* New translations silence.md (Esperanto)

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* New translations troubleshooting.md (French)

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* New translations troubleshooting.md (Kabyle)

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* New translations troubleshooting.md (Kannada)

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* New translations troubleshooting.md (Indonesian)

* New translations troubleshooting.md (English)

* New translations troubleshooting.md (Chinese Traditional)

* New translations troubleshooting.md (Ukrainian)

* New translations troubleshooting.md (Spanish)

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* New translations troubleshooting.md (Polish)

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* New translations troubleshooting.md (Czech)

* New translations troubleshooting.md (Arabic)

* New translations troubleshooting.md (Japanese, Kansai)

* New translations ja-JP.yml (Esperanto)

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* New translations changelog.md (Japanese, Kansai)

* New translations links.md (Ukrainian)

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* New translations links.md (Thai)

* New translations links.md (Esperanto)

* New translations links.md (Uyghur)

* New translations links.md (Lojban)

* New translations links.md (Kannada)

* New translations links.md (Haitian Creole)

* New translations links.md (Kabyle)

* New translations links.md (Arabic)

* New translations links.md (French)

* New translations ja-JP.yml (English)

* New translations links.md (Japanese, Kansai)

* New translations disable-timelines.md (English)

* New translations disable-timelines.md (English)

* New translations disable-timelines.md (English)

* New translations faq.md (English)

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* New translations misskey.md (English)

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* New translations faq.md (English)

* New translations apps.md (English)

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* New translations troubleshooting.md (English)

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* New translations misskey.md (English)

* New translations misskey.md (English)

* New translations misskey.md (English)

* New translations misskey.md (English)

* New translations misskey.md (English)

* New translations misskey.md (English)

* New translations misskey.md (English)

* New translations ja-JP.yml (Chinese Simplified)

* New translations disable-timelines.md (Chinese Simplified)

* New translations links.md (Chinese Simplified)

* New translations note.md (English)

* New translations silence.md (English)

* New translations note.md (English)

* New translations note.md (English)

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* New translations note.md (Kabyle)

* New translations note.md (Arabic)

* New translations note.md (French)

* New translations note.md (Japanese, Kansai)

* New translations ja-JP.yml (Esperanto)

* New translations links.md (Ukrainian)

* New translations links.md (Kabyle)

* New translations links.md (Haitian Creole)

* New translations links.md (Kannada)

* New translations links.md (Lojban)

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* New translations links.md (Esperanto)

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* New translations links.md (Japanese, Kansai)

* New translations note.md (Esperanto)

* New translations disable-timelines.md (Chinese Simplified)

See: https://forum.vuejs.org/t/how-to-avoid-non-function-value-encountered-for-default-slot-warning/107039