Table: Set width 100% if the calced width is 0 (#35802) (#35825)

(cherry picked from commit a693b2eaef)

Co-authored-by: Tobias Skarhed <1438972+tskarhed@users.noreply.github.com>

packages/grafana-ui/src/components/Table/Table.tsx

@@ -198,7 +198,7 @@ export const Table: FC<Props> = memo((props: Props) => {
   return (
     <div {...getTableProps()} className={tableStyles.table} aria-label={ariaLabel}>
       <CustomScrollbar hideVerticalTrack={true}>
-        <div style={{ width: `${totalColumnsWidth}px` }}>
+        <div style={{ width: totalColumnsWidth ? `${totalColumnsWidth}px` : '100%' }}>
           {!noHeader && (
             <div>
               {headerGroups.map((headerGroup: HeaderGroup) => {