fix: resolve trailing slash (#199)

# Description

Explicitly define trailing slash settings for URLs. There seems to be a
redirect happening somehow that will redirect a URL for example:
"docs.zksync.io/build" -> "docs.zksync.io/build/" but then the trailing
slash is removed without a redirect. There may be a clash between
hosting configuration, nuxt configuration, and nuxt seo module
configuration.

We want trailing slashes removed to be the default configuration for
URLs and we do not want any redirects flipping between the two.

firebase.json

@@ -1,5 +1,6 @@
 {
   "hosting": {
+    "trailingSlash": false,
     "public": ".output/public",
     "ignore": ["firebase.json", "**/.*", "**/node_modules/**"],
     "headers": [

nuxt.config.ts

@@ -24,6 +24,13 @@ export default defineNuxtConfig({
     '/zk-stack/concepts': { redirect: '/zk-stack/concepts/transaction-lifecycle' },
     '/zk-stack/running-a-zk-chain': { redirect: '/zk-stack/running-a-zk-chain/locally' },
   },
+  experimental: {
+    defaults: {
+      nuxtLink: {
+        trailingSlash: 'remove',
+      },
+    },
+  },
   pwa: {
     selfDestroying: true,
     strategies: 'generateSW',