Fix HAML in shared/projects/_project.html.haml

Signed-off-by: Takuya Noguchi <takninnovationresearch@gmail.com>

app/views/shared/projects/_project.html.haml

@@ -24,7 +24,7 @@
       .avatar-container.s48.flex-grow-0.flex-shrink-0{ class: avatar_container_class }
         = link_to project_path(project), class: dom_class(project) do
           - if project.creator && use_creator_avatar
-            = image_tag avatar_icon_for_user(project.creator, 48), class: "avatar s48", alt:''
+            = image_tag avatar_icon_for_user(project.creator, 48), class: "avatar s48", alt: ''
           - else
             = project_icon(project, alt: '', class: 'avatar project-avatar s48', width: 48, height: 48)
     .project-details.d-sm-flex.flex-sm-fill.align-items-center{ data: { qa_selector: 'project_content', qa_project_name: project.name } }