Increase configuration options for weekly goal feature

[jaragunde]

Weekly goals are currently configured by admins via the user management screen. The only possible setting is the number of hours at the end of the period.

I propose to create a new page called "user configuration" where we can add user-dependent settings, and we would start populating it with the weekly goal configuration. It would include:

• A table to configure personal weekly goals like the one in user management screen (open question: should we delete the one in the user management screen?)
• A selector for "dynamic" or "static" goals:
  • Dynamic: current behavior
  • Static: goal is just journey * 5.
• A selector to display goals in "negative" or "positive":
  • Negative shows the number of hours left to complete the goal (goal - worked hours)
  • Positive is the current behavior.