Revert "refactor(build-next-js-app): remove fa-token input and inherit through env vars (#5)" (#6)

This reverts commit cde2411.

Author: gmolki

build-nextjs-app/README.md

@@ -8,6 +8,10 @@ This action builds and exports a Next.js app
 
 Node.js version
 
+## `fa-token`
+
+FontAwesome NPM Auth Token
+
 ## `export`
 
 Whether to export the app or not

build-nextjs-app/action.yaml

@@ -6,6 +6,10 @@ inputs:
     description: 'Node.js version'
     required: false
     default: 18
+  fa-token:
+    description: 'FontAwesome NPM Auth Token (optional)'
+    required: false
+    default: ''
   export:
     description: 'Whether to export the app as a static site or not'
     required: false
@@ -22,6 +26,8 @@ runs:
 
     - name: Install dependencies
       shell: bash
+      env:
+        FONTAWESOME_NPM_AUTH_TOKEN: ${{ inputs.fa-token }}
       run: npm ci
 
     - name: Cache