fix: fix plugin detail page protocol name duplication issue (#3977)

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#### What type of PR is this?
/kind bug
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#### What this PR does / why we need it:

修复插件详情页面协议名字重复出现的问题

#### Which issue(s) this PR fixes:

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Fixes https://github.com/halo-dev/halo/issues/3971

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#### Does this PR introduce a user-facing change?

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console/src/modules/system/plugins/PluginDetail.vue

@@ -129,7 +129,7 @@ const pluginRoleTemplateGroups = computed<RoleTemplateGroup[]>(() => {
                 <a v-if="license.url" :href="license.url" target="_blank">
                   {{ license.name }}
                 </a>
-                <span>
+                <span v-else>
                   {{ license.name }}
                 </span>
               </li>