Fixed broken filter logic added tasksubmissioncounts

[Jackzzey]

1. submissions-of.pipe.ts — Fixed the broken filter logic. The old filter used
   submissionInfos[idx] (stream index as array index) to check evaluationId, which always filtered out the result when the array was empty.
   Replaced the whole filter+flatMap chain with a simple map(infos => infos.flatMap(i =>
   i.submissions)).
2. run-async-admin-view.component.ts — Added taskSubmissionCounts: Observable<Map<string, number>>. It's driven by merge(timer(0, 15000), this.update) so it refreshes every 15 seconds and immediately whenever the refresh/start/terminate action fires. It fetches all template counts in parallel via forkJoin, builds a Map<templateId, count>, and shares the result.
3. run-async-admin-view.component.html — Both submission count cells now use
   (taskSubmissionCounts |
   async)?.get(task.templateId) (Tasks Overview) and (taskSubmissionCounts | async)?.get(task.id) (Tasks per Team), replacing the stale pure-pipe calls. Also fixed the typo "Submisssions" → "Submissions".