debug: debug_stream_slot: Fix a typo and remove unneeded newlines

[jsarha]

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[Copilot]

Pull Request Overview

This PR fixes a typo in the log module registration and removes unnecessary newline characters from several log messages for consistency.

• Corrected the debug_strem_slot typo in LOG_MODULE_REGISTER
• Removed trailing \n from LOG_DBG and LOG_INF format strings

Comments suppressed due to low confidence (1)

src/debug/debug_stream/debug_stream_slot.c:55

• Verify that the LOG_DBG macro automatically appends a newline; removing the explicit \n may cause log entries to run together if the backend doesn't add line breaks.

	LOG_DBG("Sending record %u id %u len %u", rec->seqno, rec->id, rec->size_words);