fix: fix a bug that a delayed micro-frame-slot renders with a non-existing ID

[bill-min]

Description

When a <micro-frame-slot /> renders after <micro-frame-sse /> is already closed and the slotId does not exist in StreamSource, the slot will keep loading until it timeout.

Motivation and Context

Screenshots (if appropriate):

Checklist:

• I have updated/added documentation affected by my changes.
• I have added tests to cover my changes.

[codecov]

Codecov Report

Base: 90.16% // Head: 89.66% // Decreases project coverage by -0.50% ⚠️

Coverage data is based on head (0abcc38) compared to base (d469c64).
Patch coverage: 77.77% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #12      +/-   ##
==========================================
- Coverage   90.16%   89.66%   -0.51%     
==========================================
  Files          16       16              
  Lines         295      300       +5     
  Branches       64       67       +3     
==========================================
+ Hits          266      269       +3     
- Misses          7        9       +2     
  Partials       22       22              

Impacted Files	Coverage Δ
...onents/micro-frame-slot/component/web.component.ts	82.05% <0.00%> (-4.44%)	⬇️
...c/components/micro-frame-slot/component/node.marko	91.66% <100.00%> (+0.36%)	⬆️
...components/stream-source/component/StreamSource.ts	100.00% <100.00%> (ø)

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

☔ View full report at Codecov.
📢 Do you have feedback about the report comment? Let us know in this issue.

[github-actions]

🎉 This PR is included in version 1.4.4 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀