fix(breadcrumb): use flex-start for justify content (#1369)

fixes lint warning: start value has mixed support, consider using flex-start instead

Co-authored-by: Alexander Riss <ariss@adobe.com>

components/breadcrumb/index.css

@@ -36,7 +36,7 @@ governing permissions and limitations under the License.
 
 .spectrum-Breadcrumbs {
  display: flex;
- justify-content: start;
+ justify-content: flex-start;
  list-style-type: none;
  flex-wrap: nowrap;
  flex-grow: 1;
@@ -83,7 +83,7 @@ governing permissions and limitations under the License.
 .spectrum-Breadcrumbs-item {
  display: inline-flex;
  align-items: center;
- justify-content: start;
+ justify-content: flex-start;
 
  box-sizing: border-box;
  block-size: var(--spectrum-breadcrumb-list-height);
@@ -114,7 +114,7 @@ governing permissions and limitations under the License.
 
  display: inline-flex;
  align-items: center;
- justify-content: start;
+ justify-content: flex-start;
 
  padding-block: 0;
  padding-inline: var(--spectrum-breadcrumb-item-padding-x);