add loading symbol whilst waiting for name

Author: GuustMetz

lib/public/views/Runs/RunPerPeriod/RunsPerLhcPeriodOverviewPage.js

@@ -102,14 +102,14 @@ export const RunsPerLhcPeriodOverviewPage = ({ runs: { perLhcPeriodOverviewModel
 
     const lhcPeriodName = remoteLhcPeriodStatistics?.match({
         Success: (lhcPeriodStatistics) => lhcPeriodStatistics.lhcPeriod.name,
-        Other: () => '',
+        Other: () => spinner({ size: 1, absolute: false }),
     });
 
     return [
         h('.flex-row.justify-between.items-center.g2', [
             filtersPanelPopover(perLhcPeriodOverviewModel, activeColumns, { profile: 'runsPerLhcPeriod' }),
             h('.pl2#runOverviewFilter', runNumbersFilter(perLhcPeriodOverviewModel.filteringModel.get('runNumbers'))),
-            h('h2', ['Good physics runs of ', lhcPeriodName ?? spinner({ size: 1, absolute: false })]),
+            h('h2', ['Good physics runs of ', lhcPeriodName]),
             mcReproducibleAsNotBadToggle(
                 mcReproducibleAsNotBad,
                 () => perLhcPeriodOverviewModel.setMcReproducibleAsNotBad(!mcReproducibleAsNotBad),