UI - Updates to Control Section

**Control section:**
Figma (for all 3 subsections): https://www.figma.com/design/4oi1IWHe0DmbY8EZk3Srs3/Add-edit-SI?node-id=173-5232&t=aN7SVfKgydCM5y7l-1

**General**
- [ ] Renamed section to “Significance details”
- [ ] Changed into paragraph text
- [ ] Subsections are now numbered

**Shares & votes sub sections**
- [ ] Updated into sentences and reordered information so type of interest or right is first, then jointly, then percentage
- [ ] Help has been renamed and updated
- [ ] Jointly and in concert has been totally reformatted - all text has changed but checkbox still does the same behaviour Figma: https://www.figma.com/design/4oi1IWHe0DmbY8EZk3Srs3/Add-edit-SI?node-id=3137-29880&t=aN7SVfKgydCM5y7l-1
- [ ] Intro text for percentage of shares or votes has also been updated

**Directors sub section**
- [ ] Intro paragraph text and checkboxes all need text updated
- [ ] Jointly/in concert box needs to be updated with the new text/formatting/behaviour same as shares and votes

Links for the legislation section numbers: https://app.zenhub.com/workspaces/ba-team-space-new-655e2cc123f9a305d11c5a14/issues/gh/bcgov/entity/25317

Start by locating the frontend entry point for the Control section and compare its current text, numbering, checkbox behavior, and layout with the linked Figma designs. Use the legislation section-number link as context, then verify all three subsections and their checkbox behavior against the requested wording; the issue names no files or tests.

Written by the indexing model from the issue text.