fix(core): ai subscribe button is not show in ai usage page

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[CatsJuice]

• #8869 👈 (View in Graphite)
• canary

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 70.25%. Comparing base (4011062) to head (291ac8b). Report is 5 commits behind head on canary.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## canary #8869 +/- ## ======================================= Coverage 70.25% 70.25% ======================================= Files 550 550 Lines 33980 33980 Branches 3052 3052 ======================================= Hits 23871 23871 Misses 9737 9737 Partials 372 372 ``` | [Flag](https://app.codecov.io/gh/toeverything/AFFiNE/pull/8869/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=toeverything) | Coverage Δ | | |---|---|---| | [server-test](https://app.codecov.io/gh/toeverything/AFFiNE/pull/8869/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=toeverything) | `77.14% <ø> (ø)` | | | [unittest](https://app.codecov.io/gh/toeverything/AFFiNE/pull/8869/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=toeverything) | `46.08% <ø> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=toeverything#carryforward-flags-in-the-pull-request-comment) to find out more.

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