Portal/ Design fixes

[aditigopalan]

• Select Metrics from Almanack for Portal Display

Suggestions from Dave:

repo-includes-contributing: Presence of a CONTRIBUTING file

repo-is-citable: Presence of a CITATION file or citation method

repo-doi-https-resolvable: Whether DOI in CITATION.cff is HTTPS-resolvable

Refer to metrics with sustainability_correlation: 1 in metrics.yml for candidates.

• Update label from "Software Almanack Score" to "Software Gardening Almanack Score"