Era week number test

[LHJE]

Code Highlights:

• Updates Users Factory to make the premade user older, making testing easier.
• Updates Eras and Events Factories to have week_number
• Updates the create_era.rb to accept the week_number argument
• Updates the create_era.rb to calculate week_number
• Updates the update_era.rb to accept the week_number argument
• Updates the update_era.rb to calculate week_number
• Updates the create_era_spec.rb to take week_number into consideration
• Updates the update_era_spec.rb to take week_number into consideration
• Updates the get_single_era_spec.rb to test weekNumber being exposed

Where should the reviewer start?

• create_era_spec.rb and update_era_spec.rb

Have Tests Been Added?

• No.
• Yes, but all tests are not passing.
• Yes, and all are passing.

Any background context you want to provide?

• This one needs to be merged after PR Create era #73 and Week number to events and eras #81

Message/Questions for reviewer:

• The calculation for which week the era starts is not to-the-date perfect, because it's only taking the difference between the start date of the era and the user's bday, but it's a start. It'll have to be refined in the future, but it is working for now.

Issues:

• Addresses When user creates a new era, the week number is calculated and stored #80
• Addresses When user updates an era date, the week number also updates #76
• Addresses Expose era's week number in queries #85
• Closes When user creates a new era, the week number is calculated and stored #80
• Closes When user updates an era date, the week number also updates #76
• Closes Expose era's week number in queries #85

Screenshots (if appropriate):

Tracking Consistency:

• added appropriate labels
• My code follows the code style of this project and has removed all unnecessary annotations
• I have added comments on my pull request, particularly in hard-to-understand areas
• looked at PR preview to check spelling, syntax, formatting, and completion
• Rubocop Violations: Just the get_users one

[AngelaGuardia]

This looks good @LHJE! Left some comments for some changes.

[LHJE]

Thanks for the comments! Looks great!