update dendrogram colors

Looks like the current dendro colors don't match the bubble chart.

Correct colors to use:

Also noting hex colors here:

dimension	hex code
demographic characteristics	"#092836"
health	"#ef5675"
living conditions	"#7a5195"
socioeconomic status	"#2a468f"
risk perception	"#ff764a"
land tenure	"#1b695e"
exposure to stressors	"#ffa600"