Add meta tags to CLIxDashboard

[SadaqatMulla]

Add meta tags and enable open graph (OG) and preview on social media.

1. Landing page https://clixdashboard.tiss.edu

• Title: CLIxDashboard - implementation metrics and learning analytics
• Description: Explore the CLIx implementation monitoring metrics and learning analytics across our partner schools.
• Image: Banner image

2. About page https://clixdashboard.tiss.edu/about

• Title: About | CLIxDashboard - implementation metrics and learning analytics #65
• Description: Connected Learning Initiative (CLIx) is a bold and innovative intervention, with global relevance for quality teaching & learning in the public education system of India. Explore the CLIx implementation monitoring metrics and learning analytics across our partner schools. #63
• Image: CLIx logo image or banner image #64

3. Documentation page https://clixdashboard.tiss.edu/documentation

• Title: Documentation | CLIxDashboard - implementation metrics and learning analytics #66
• Description: Understand the open data documentation of CLIx learning analytics and implementation monitoring metrics. #67
• Image: Banner image #68

Reference websites (share main website or sections of sites on telegram, whatsapp, twitter, facebook etc and observe how they render)

1. https://ourworldindata.org
2. https://mathigon.org
3. https://graphics.reuters.com/