[dashboard][Study Progression] Add tooltip visualising of Total in line chart

[satvik-tha-god]

Brief summary of changes

• Added total scan and recruitment data in their respective chart visualisations
• Added total calculation
• Updated related CSS
• Updated scale of chart appropriately
• Minor Spelling mistake fixes

Testing instructions (if applicable)

1. Check the dashboards for Study Progression Data

Link(s) to related issue(s)

• Resolves #8122

Here's how the changes look: