feat[Gotthard2][Correct]: Update plots and add new masked_corrected plot

Description

Add masked corrected plot for the three plotting cells, beside:

• Refactor plotting to reduce code duplication.
• Remove the constants_file which was needed at the beginning while integrating new gothard2 for the first time.
  • We should aim for a better global function after having the new injection code and having same format for local and db constants.

How Has This Been Tested?

Relevant Documents (optional)

gh2_correct.pdf

Types of changes

• New feature (non-breaking change which adds functionality)

Checklist:

Reviewers

@mramilli @kluyvert @schmidtp