[DOCS] Update firmware_build dev path (#1355)

So as to link properly to the manifest

Make the website name more explicit

so as to avoid confusion with the production one

.github/workflows/manual_docs_to_dev.yml

@@ -23,7 +23,7 @@ jobs:
       - name: Set sha tag
         run: |
           sed -i "s/version_tag/${{ steps.short-sha.outputs.sha }}/g" main/User_config.h
-          sed -i "s/version_tag/${{ steps.short-sha.outputs.sha }}/g" docs/.vuepress/config.js
+          sed -i "s/version_tag/DEVELOPMENT SHA:${{ steps.short-sha.outputs.sha }} TEST ONLY/g" docs/.vuepress/config.js
           sed -i "s|base: '/'|base: '/dev/'|g" docs/.vuepress/config.js
       - name: Run PlatformIO
         run: platformio run