Description

TracingGanttChart: align span duration label location based on available space. Show the label on the left side if there is no space on the right side.

Additionally, set a min-width of 2px for the span bar, otherwise span bars with very small durations would be invisible.

Screenshots

The span duration label of the pink bar is shown on the left side, because there is no space on the right side:

Checklist

• Pull request has a descriptive title and context useful to a reviewer.
• Pull request title follows the [<catalog_entry>] <commit message> naming convention using one of the
  following catalog_entry values: FEATURE, ENHANCEMENT, BUGFIX, BREAKINGCHANGE, DOC,IGNORE.
• All commits have DCO signoffs.

UI Changes

• Changes that impact the UI include screenshots and/or screencasts of the relevant changes.
• Code follows the UI guidelines.
• Visual tests are stable and unlikely to be flaky.
  See Storybook
  and e2e docs for more details. Common issues
  include:
  • Is the data inconsistent? You need to mock API requests.
  • Does the time change? You need to use consistent time values or mock time utilities.
  • Does it have loading states? You need to wait for loading to complete.