Refactor build configuration and Dockerfile for Platypus web app serv…

…er and admin, agent, and server

.goreleaser.yaml

@@ -14,6 +14,8 @@ before:
     - go mod tidy
     # you may remove this if you don't need go generate
     - go generate ./...
+    # build the docs
+    - sh -c "cd docs/platypus && yarn install && yarn build"
 
 builds:
   - id: platypus-server
@@ -273,7 +275,9 @@ archives:
         format: zip
     files:
       - README.md
-      - assets/*
+      - src: docs/platypus/build
+        dst: docs
+        strip_parent: true
 
 changelog:
   sort: asc