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/RepoRecentCommits.vue

@@ -35,7 +35,7 @@ export default {
   props: {
     locale: {
       type: Object,
-      required: true
+      required: true,
     },
   },
   data: () => ({
@@ -105,12 +105,12 @@ export default {
             },
             ticks: {
               maxRotation: 0,
-              maxTicksLimit: 52
+              maxTicksLimit: 52,
             },
           },
           y: {
             ticks: {
-              maxTicksLimit: 6
+              maxTicksLimit: 6,
             },
           },
         },