shopfloor dashboard: use Archivo display font for TV legibility

Bundle @fontsource-variable/archivo (air-gap safe) and apply it to the shopfloor
dashboard only - a sturdy grotesque built for signage/displays, more legible
from across the shop than Inter. Rest of the app stays on Inter.

frontend/package-lock.json

@@ -8,6 +8,7 @@
       "name": "shopdb-frontend",
       "version": "0.7.0",
       "dependencies": {
+        "@fontsource-variable/archivo": "^5.3.0",
         "@fontsource-variable/inter": "^5.2.8",
         "@fullcalendar/core": "^6.1.20",
         "@fullcalendar/daygrid": "^6.1.20",
@@ -649,6 +650,14 @@
         "node": ">=18"
       }
     },
+    "node_modules/@fontsource-variable/archivo": {
+      "version": "5.3.0",
+      "resolved": "https://registry.npmjs.org/@fontsource-variable/archivo/-/archivo-5.3.0.tgz",
+      "integrity": "sha512-HogK8FJelrD1o7TlZlkIVtHgc20bO5PZRWE7mUeUTdMN055alznQV6/00J00IBeu8FQAH4s3zW9UJNvKExXf+g==",
+      "funding": {
+        "url": "https://github.com/sponsors/ayuhito"
+      }
+    },
     "node_modules/@fontsource-variable/inter": {
       "version": "5.2.8",
       "resolved": "https://registry.npmjs.org/@fontsource-variable/inter/-/inter-5.2.8.tgz",