Remove prepare script

The prepare script is automatically run with every call to npm ci / npm
install, among other scripts¹. As it is just an alias to the build
script (which can take several minutes), it should be safe to remove
this automation and speed up the dev experience.

Some parts of the README and CI workflow had relied on the prepare
script automation. Updated accordingly.

¹ https://docs.npmjs.com/cli/v8/using-npm/scripts?v=true#life-cycle-operation-order

.github/workflows/ci.yaml

@@ -45,6 +45,7 @@ jobs:
           node-version: ${{ matrix.node }}
       - run: npm ci
       - run: npm run get-data
+      - run: npm run build
       - run: npm run smoke-test:ci
   lint:
     runs-on: ubuntu-latest
@@ -69,6 +70,7 @@ jobs:
         with:
           node-version: ${{ matrix.node }}
       - run: npm ci
+      - run: npm run build
       - run: npx bundlesize
   publish:
     if: ${{ github.ref == 'refs/heads/release' }}

README.md

@@ -90,6 +90,7 @@ If you wish to view the [nextstrain-maintained narratives](https://nextstrain.or
 ### Run auspice
 
 ```bash
+auspice build --verbose
 auspice view --datasetDir data
 ```
 

package.json

@@ -20,7 +20,6 @@
     "start": "npm run view",
     "server": "npm run view",
     "build": "node auspice.js build --verbose",
-    "prepare": "npm run build",
     "lint": "eslint src",
     "lint:fix": "eslint --fix src",
     "get-data": "env bash ./scripts/get-data.sh",