✨ Add Skills Section to Experiment Creator

[mlamina]

This PR introduces a new skills section to the experiment creator, enhancing the user experience and functionality.

Changes include:

UI Enhancements

• Add skills section to create_experiment.html to display and handle skill selection.
• Update view_experiment.html to show selected skills and their details.
• Improve the layout and styling of buttons and tabs.

Backend Adjustments

• Modify labs/views.py to handle selected skill IDs and render selected skills.
• Update models and migrations to support new skill attributes.

Metadata Generation

• Implement metadata generation for skills in hub/meta.py.
• Ensure metadata is only generated if the skills file has changed.

For more details, view the changes in the following files:

• engine/agents/pr_pilot_agent.py
• engine/task_engine.py
• helm-chart/templates/cronjob.yaml
• hub/management/commands/collect_skills_hub_data.py
• hub/meta.py
• hub/migrations/0002_programminglanguage_tag_pilotskill_category_and_more.py
• hub/migrations/0003_programmingframework_and_more.py
• hub/migrations/0004_pilotskill_fa_icon_classes.py
• hub/models.py
• labs/templates/create_experiment.html
• labs/templates/lab_root.html
• labs/templates/view_experiment.html
• labs/views.py
• version.txt
• webhooks/migrations/0004_githubrepository_skills_file_hash.py
• webhooks/models.py