fix(web): rename the activities nav item

The sidebar says فعالیت‌ها, and the phone tab stays فعالیت so the five-item bar still fits.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/web/src/layouts/AppLayout.vue

@@ -585,13 +585,13 @@ onUnmounted(() => {
             <button
               class="nav-item nav-fold-btn"
               type="button"
-              title="کارها"
+              title="فعالیت‌ها"
               :class="{ 'router-link-active': activitiesActive || openHubKey === 'activities', 'hub-on': openHubKey === 'activities' }"
               :aria-expanded="openHubKey === 'activities'"
               @click="onHubClick('activities')"
             >
               <UiIcon name="check" :size="collapsed ? 20 : 18" />
-              <span>کارها</span>
+              <span>فعالیت‌ها</span>
               <span v-if="activityBadge" class="nav-badge">{{ toFaDigits(activityBadge) }}</span>
               <i class="chev" aria-hidden="true" />
             </button>
@@ -978,13 +978,14 @@ onUnmounted(() => {
         type="button"
         :class="{ on: !moreOpen && (activitiesActive || openHubKey === 'activities') }"
         :aria-expanded="openHubKey === 'activities'"
+        title="فعالیت‌ها"
         @click="openTabHub('activities')"
       >
         <span class="tab-ico">
           <UiIcon name="check" :size="20" />
           <span v-if="activityBadge" class="tab-badge">{{ toFaDigits(activityBadge) }}</span>
         </span>
-        <span>کارها</span>
+        <span>فعالیت</span>
       </button>
       <button
         class="tab"