Add i18n

apps/client/src/app/pages/about/about-page.html

@@ -99,7 +99,9 @@
                 {{ statistics?.activeUsers1d ?? '-' }}
               </h3>
               <div class="h6 mb-0">
-                Active Users <small class="text-muted">(Last 24 hours)</small>
+                <span i18n>Active Users</span>&nbsp;<small class="text-muted"
+                  >(Last 24 hours)</small
+                >
               </div>
             </div>
             <div class="col-xs-12 col-md-3 my-2">
@@ -107,20 +109,22 @@
                 {{ statistics?.activeUsers30d ?? '-' }}
               </h3>
               <div class="h6 mb-0">
-                Active Users <small class="text-muted">(Last 30 days)</small>
+                <span i18n>Active Users</span>&nbsp;<small class="text-muted"
+                  >(Last 30 days)</small
+                >
               </div>
             </div>
             <div class="col-xs-12 col-md-3 my-2">
               <h3 class="mb-0" [hidden]="!statistics?.gitHubContributors">
                 {{ statistics?.gitHubContributors ?? '-' }}
               </h3>
-              <div class="h6 mb-0">Contributors on GitHub</div>
+              <div class="h6 mb-0" i18n>Contributors on GitHub</div>
             </div>
             <div class="col-xs-12 col-md-3 my-2">
               <h3 class="mb-0" [hidden]="!statistics?.gitHubStargazers">
                 {{ statistics?.gitHubStargazers ?? '-' }}
               </h3>
-              <div class="h6 mb-0">Stars on GitHub</div>
+              <div class="h6 mb-0" i18n>Stars on GitHub</div>
             </div>
           </div>
         </mat-card-content>