fix(templates): update issue and MR templates for clarity and cleanup
This MR addresses Issue: Fix inconsistencies in issue_template.md and MR_template.md #15 by implementing the suggested improvements:
Removed the “Follows Semantic Versioning” line from MR_template.md
Updated issue_template.md:
Removed "Issue Type" section and added label guidance
Corrected Python version in the environment table
Removed "Expected version bump" field
Simplified the checklist items
These changes improve clarity, maintain relevance, and align with our current contribution practices.