Update dependency anomalyco/opencode to v1.18.1

[vinnyang]

This PR contains the following updates:

Package	Update	Change
anomalyco/opencode	minor	1.17.20 → 1.18.1

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Release Notes

anomalyco/opencode (anomalyco/opencode)

v1.18.1

Compare Source

Desktop

Bugfixes

• Fixed spacing between model provider sections in Settings.

v1.18.0

Compare Source

Desktop

Improvements

• Completed the Desktop v2 migration, including upgrade handling for the new layout and first-launch onboarding.
• Added a setting to switch between the new and old Desktop layouts during the transition period.

Bugfixes

• Fixed file views using the wrong background in the v2 layout.
• Fixed connected project picker positioning when its anchor is still loading.
• Kept permission auto-accept state separate for each server.
• Fixed a project picker positioning crash.
• Kept terminal tab rename focused while editing.
• Enabled remote sessions to auto-accept permissions correctly.
• Fixed terminal tabs stealing focus when they mount.
• Loaded more timeline history at once to reduce repeated backfill while scrolling.
• Resynced the timeline correctly after reconnecting.
• Preserved the composer caret after request updates.
• Reduced Home cold-load time substantially.
• Preserved timeline bottom anchoring more reliably.
• Clarified status indicator severity.

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