fix(docs): Fix incorrect ARDUINO_USB_MODE for USB CDC usage

[ejohnso49]

Description of Change

Fixes error in Troubleshooting page when enabling serial logging over the built-in USB CDC interface.

When enabling serial logging over the built-in USB CDC interface, both ARDUINO_USB_CDC_ON_BOOT and ARDUINO_USB_MODE should be set to 1

Test Scenarios

Tested this configuration to enable logging over the built-in USB CDC interface on an ESP32S3

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Warnings

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Some issues found for the commit messages in this PR: the commit message "fix(docs): Fix incorrect ARDUINO_USB_MODE for USB CDC usage": body's lines must not be longer than 100 characters Please fix these commit messages - here are some basic tips: follow Conventional Commits style correct format of commit message should be: <type/action>(<scope/component>): <summary>, for example fix(esp32): Fixed startup timeout issue allowed types are: change,ci,docs,feat,fix,refactor,remove,revert,test sufficiently descriptive message summary should be between 10 to 72 characters and start with upper case letter avoid Jira references in commit messages (unavailable/irrelevant for our customers) TIP: Install pre-commit hooks and run this check when committing (uses the Conventional Precommit Linter).

👋 Hello ejohnso49, we appreciate your contribution to this project!

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