Fix #1380, Light coding standards cleanup

[thnkslprpt]

Checklist

• I reviewed the Contributing Guide.
• I signed and emailed the appropriate Contributor License Agreement to GSFC-SoftwareRelease@mail.nasa.gov and copied cfs-program@lists.nasa.gov.

Describe the contribution

• Fixes Light coding standards cleanup #1380
  • Light clean-up for some 'easy wins' to improve compliance with some of the rules common to the relevant coding standards:
    • split up multiple declarations on a single line
    • remove redundant definitions (i.e. values that are not used before the variable is assigned a new value)
    • remove trailing whitespace in yaml files
    • add braces to single line if/else blocks
    • remove side-effects from statements where no refactoring or new variables are needed. For example:
      

Testing performed
GitHub CI actions all passing successfully.

Expected behavior changes
No change to behavior.

This PR will:

• improve clarity & consistency
• improve compliance with rules common to all/most of the relevant coding standards
• reduce technical debt and ease future maintenance
• result in cleaner builds with fewer alerts/warnings from code scanners

Contributor Info
Avi Weiss @thnkslprpt