change default AP channel to 6, possible fix for "AP does not show"

[DedeHai]

some (bad) antennas do not work well if not on a center channel

Summary by CodeRabbit

• Chores
  • Adjusted default configuration settings for wireless access point initialization.

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[coderabbitai]

Caution

Review failed

The pull request is closed.

Walkthrough

A single default constant value in wled00/wled.h is modified: the apChannel initialization default decreases from 7 to 6 in the non-WLED_SAVE_RAM code path, affecting WiFi access point configuration.

Changes

Cohort / File(s)	Summary
WiFi AP Configuration Default wled00/wled.h	Default initialization value of apChannel changed from 7 to 6 in non-WLED_SAVE_RAM path

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

• Verify that changing the default AP channel from 7 to 6 aligns with intended WiFi configuration strategy
• Confirm this change applies only to the non-WLED_SAVE_RAM code path and doesn't affect other configurations

Suggested reviewers

• blazoncek
• netmindz

✨ Finishing touches

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📜 Recent review details

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Review profile: CHILL

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📥 Commits

Reviewing files that changed from the base of the PR and between f12e3e0 and e3ed419.

📒 Files selected for processing (1)

• wled00/wled.h (1 hunks)

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