[chore] refactor azuremonitor scraper

[nslaughter]

Description:

Link to tracking Issue: #35446

Testing: The existing tests pass and that is the testing objective for this refactoring.

Documentation: There's no need for additional documentation at this time as this is a refactor.

Justification and Rationalization for Code Refactoring

1. Organized Imports, Constants, and Variables

• Grouped and Ordered Imports: Improves readability and makes it easier to locate and manage dependencies.
• Consolidated Constants and Variables: Enhances the ease of configuration and modification of global settings.

2. Added Comments and Documentation

• Type and Function Comments: Helps new contributors understand the purpose and usage of various components.
• Inline Comments for Complex Logic: Improves code clarity and maintainability.

3. Removed Unnecessary Types and Simplified Code

• Eliminated void Struct Type: Simplifies the code by removing unnecessary type declarations. This is a more idiomatic approach for Go.
• Simplified Map Initializations: Optimizes memory usage, improving performance.

4. Refactored Functions for Clarity

• Optimized getResourceGroupFromID: Enhances performance by avoiding redundant calculations.
• Simplified getResourcesFilter: Makes the code more readable and easier to modify.

5. Improved Concurrency Handling

• Simplified Goroutine Management in scrape: Reduces complexity and potential for concurrency-related bugs.
• Scoped Mutex Usage: Enhances safety while maintaining performance.

6. Enhanced Error Handling and Logging

• Consistent Error Logging: Facilitates easier debugging and monitoring.
• Early Returns on Errors: Prevents cascading failures and unintended side effects.

7. Improved Struct Field Organization

• Grouped Related Fields in azureScraper: Improves readability and makes the codebase easier to navigate.

8. Extracted Helper Functions

• Created copyAttributes Function: Avoids unintended mutations of shared maps and promotes code reuse.

9. Consistent Naming Conventions

• Standardized Variable and Function Names: Improves code clarity and reduces confusion.
• Followed Go Naming Conventions: Aligns with Go best practices for code organization.

10. Style

• Removed Redundant Code: Simplifies the code and reduces cognitive load.

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Closed as inactive. Feel free to reopen if this PR is still being worked on.