feat(theme): add option to customize search button text (#713) (#747)

close #713

src/client/theme-default/components/VPNavBarSearch.vue

@@ -76,7 +76,7 @@ function load() {
               stroke-linejoin="round"
             />
           </svg>
-          <span class="DocSearch-Button-Placeholder">Search</span>
+          <span class="DocSearch-Button-Placeholder">{{ theme.algolia?.buttonText || 'Search' }}</span>
         </span>
         <span class="DocSearch-Button-Keys">
           <kbd class="DocSearch-Button-Key" ref="metaKey">Meta</kbd>

types/default-theme.d.ts

@@ -220,6 +220,7 @@ export namespace DefaultTheme {
     searchParameters?: any
     disableUserPersonalization?: boolean
     initialQuery?: string
+    buttonText?: string
   }
 
   // carbon ads ----------------------------------------------------------------