DEV: New plugin outlets for user and user-card (#16307)

app/assets/javascripts/discourse/app/templates/components/user-card-contents.hbs

@@ -1,4 +1,5 @@
 {{#if this.visible}}
+  {{plugin-outlet name="before-user-card-content" args=(hash user=this.user)}}
   <div class="card-content">
     {{#if this.loading}}
       <div class="card-row first-row">

app/assets/javascripts/discourse/app/templates/user.hbs

@@ -50,6 +50,7 @@
       {{/unless}}
       <div class="details">
         <div class="primary">
+          {{plugin-outlet name="before-user-profile-avatar" args=(hash model=model)}}
           {{user-profile-avatar user=model tagName=""}}
           <section class="controls">
             <ul>