Enforce trailing comma in JS on multiline (#30002)

To keep blame info accurate and to avoid [changes like
this](https://github.com/go-gitea/gitea/pull/29977/files#diff-c3422631a14edbe1e508c4b22f0c718db318be08a6e889427802f9b6165d88d6R359),
it's good to always have a trailing comma, so let's enforce it in JS.

This rule is completely automatically fixable with `make lint-js-fix`
and that's what I did here.

(cherry picked from commit 3d751b6ec18e57698ce86b79866031d2c80c2071)

Conflicts:
	web_src/js/components/DashboardRepoList.vue
	trivial context conflict because of '3b7b899afa fix commit_status'

web_src/js/components/RepoActionView.vue

@@ -69,7 +69,7 @@ const sfc = {
             name: '',
             link: '',
           },
-        }
+        },
       },
       currentJob: {
         title: '',
@@ -314,7 +314,7 @@ const sfc = {
       const logLine = this.$refs.steps.querySelector(selectedLogStep);
       if (!logLine) return;
       logLine.querySelector('.line-num').click();
-    }
+    },
   },
 };
 
@@ -357,7 +357,7 @@ export function initRepositoryActionView() {
         skipped: el.getAttribute('data-locale-status-skipped'),
         blocked: el.getAttribute('data-locale-status-blocked'),
       },
-    }
+    },
   });
   view.mount(el);
 }