ci: fix prax website deploy

Restores some crucial Firebase configs to straighten out the CD pipeline
for updating the prax marketing website, hosted on Firebase.

.firebaserc

@@ -0,0 +1,5 @@
+{
+  "projects": {
+    "default": "prax-website-1aea3"
+  }
+}

.github/workflows/deploy-firebase.yml

@@ -1,7 +1,7 @@
 ---
 # Builds the static site via pnpm, then copies that local directory's contents
 # to Firebase, at: https://praxwallet.com
-name: Deploy Prax marketing site
+name: Deploy static site
 on:
   # Support ad-hoc runs via dispatch, so we can deploy from
   # unmerged feature branches if necessary.
@@ -27,7 +27,6 @@ jobs:
 
       - name: Build static site
         run: pnpm build
-        working-directory: apps/prax-marketing-site
 
       - name: Deploy dapp static site to firebase
         # N.B. the firebase-action helper doesn't support semver, e.g. `@v13`,
@@ -37,4 +36,3 @@ jobs:
           args: deploy
         env:
           FIREBASE_TOKEN: ${{ secrets.FIREBASE_TOKEN }}
-          PROJECT_PATH: apps/prax-marketing-site/dist

firebase.json

@@ -0,0 +1,10 @@
+{
+  "hosting": {
+    "public": "apps/prax-marketing-site/dist",
+    "ignore": [
+      "firebase.json",
+      "**/.*",
+      "**/node_modules/**"
+    ]
+  }
+}