Update emdash style to match across and within pages of the site (#190)

Signed-off-by: Cal Callaghan <148151066+callaghangsa@users.noreply.github.com>

Author: callaghangsa

src/data/sitewide.yaml

@@ -54,7 +54,7 @@ ourApproach:
   items:
     - id: "g2g"
       heading: "Built for gov, by gov"
-      text: "Our infrastructure, pricing, and onboarding are designed specifically for government—so you can focus on delivery, not procurement."
+      text: "Our infrastructure, pricing, and onboarding are designed specifically for government — so you can focus on delivery, not procurement."
       link:
         label: "Our approach"
         url: ""
@@ -110,4 +110,4 @@ serviceLogos:
   - letsencrypt
   - rds
   - route53
-  - s3
+  - s3