Various fixes

[NicoPennec]

Problem

• On the Shots page, create a new shot, then edit "frame in" or "frame out". The data are not saved (see Editing additional information field after shot creation doesn't update it #1592)
• On the Shots page, invalid data can raise an issue.
• A unit test is broken.
• Outdated npm dependencies.

Solution

• Fix typo in unit test.
• Bump npm dependencies.
• Fix edge case of undefined data.
• Fix data reactivity: shotMap access in the Shots page.