[web] Fix a warning message in the console on the "About" and "Search" pages.

When accessing the "About" and "Search", no warning is shown regarding the scope of translations.

web-src/src/i18n.js

@@ -7,12 +7,12 @@ import { createI18n } from 'vue-i18n'
 import messages from '@intlify/unplugin-vue-i18n/messages'
 
 export default createI18n({
-  legacy: false,
-  globalInjection: true,
   availableLocales: ('de', 'en', 'fr'),
-  locale: navigator.language,
   fallbackLocale: 'en',
   fallbackWarn: false,
-  missingWarn: false,
-  messages
+  globalInjection: true,
+  legacy: false,
+  locale: navigator.language,
+  messages,
+  missingWarn: false
 })

web-src/src/pages/PageAbout.vue

@@ -140,7 +140,12 @@
                   })
                 "
               />
-              <i18n-t tag="p" class="is-size-7" keypath="page.about.built-with">
+              <i18n-t
+                tag="p"
+                class="is-size-7"
+                keypath="page.about.built-with"
+                scope="global"
+              >
                 <template #bulma><a href="https://bulma.io">Bulma</a></template>
                 <template #mdi
                   ><a href="https://pictogrammers.com/library/mdi/"

web-src/src/pages/PageSearch.vue

@@ -22,6 +22,7 @@
                   tag="p"
                   class="help has-text-centered"
                   keypath="page.search.help"
+                  scope="global"
                 >
                   <template #query><code>query:</code></template>
                   <template #help