Improve CSV parsing in load_ocp_keyword_from_csv method

[coderabbitai]

Description

The current implementation of load_ocp_keyword_from_csv method in ovos_workshop/skills/common_play.py uses manual CSV parsing which has several limitations:

• Cannot handle quoted fields or commas within values
• No error handling for malformed lines
• Uses ambiguous variable name

Suggested Improvement

Replace the manual CSV parsing with Python's built-in csv module for robust CSV handling with proper error handling and support for quoted fields.

Context

This issue was identified during code review of PR #365.

Related Links:

• PR: fix: ocp skills #365
• Comment: fix: ocp skills #365 (comment)
• Requested by: @JarbasAl