update docs

Author: wu-clan

docs/.vuepress/components/SponsorPanel.vue

@@ -12,7 +12,7 @@
           v-for="(brand, index) in processedGoldSponsors"
           v-show="!isCollapsed || (isCollapsed && shouldShowSponsor(brand))"
           :key="'gold-' + index"
-          :class="{ 'brand-item-gold-mode collapsed-mode': isCollapsed }"
+          :class="{ 'brand-item-gold-mode': !isCollapsed, 'collapsed-mode': isCollapsed }"
           class="brand-item gold"
           @click="openSponsorLink(brand.href)"
       >
@@ -30,7 +30,7 @@
           v-for="(brand, index) in processedGeneralSponsors"
           v-show="!isCollapsed || (isCollapsed && shouldShowSponsor(brand))"
           :key="'general-' + index"
-          :class="{ 'brand-item-mode collapsed-mode': isCollapsed }"
+          :class="{ 'brand-item-mode': !isCollapsed, 'collapsed-mode': isCollapsed }"
           class="brand-item"
           @click="openSponsorLink(brand.href)"
       >