Salary evolution chart: Median selector unavailable in inline quarter selector

[yaca29]

Description

On professional integration pages (e.g., this page), in the "Évolution" view, the "Évolution des salaires" chart has an inline selector to switch between Q1, Median, and Q3.

Issue: It is currently impossible to select the Median after switching to Q1 or Q3. The selector allows switching to Q1/Q3 but fails to revert to Median.

Steps to Reproduce

1. Navigate to a professional integration page (e.g., 7700494N).
2. Scroll to the "Évolution" section and locate the "Évolution des salaires" chart.
3. Use the inline selector to switch from Median to Q1 or Q3.
4. Attempt to switch back to Median.

Expected Behavior

The selector should allow toggling freely between Q1, Median, and Q3 at any time.

Actual Behavior

After selecting Q1 or Q3, the Median option becomes unresponsive or invisible, preventing users from reverting to the median view.

Additional Context

• URL Example: https://datafresq.data.esr.gouv.fr/formations/7700494N/insertion
• Severity: Medium (blocks access to default/median data)