Change question type to input list

Author: Kobzol

surveys/2025/contributor-survey/questions.md

@@ -132,18 +132,12 @@ Please enter the **minimum monthly compensation** in USD that would allow you to
 If you do not **need** any compensation for the given contribution workload, and you are fine doing it on a volunteer basis, please enter **0**.
 If you do not **want** to work on Rust for so many days per week, please enter **never**.
 
-Type: matrix (optional)
-
-Contribution levels:
+Type: input list (optional)
 
 - 4-5 days per week (full-time)
 - 2-3 days per week (part-time)
 - 1 day per week or less
 
-Compensation:
-
-- Open response
-
 ### What funding arrangement would you prefer?
 
 Regardless of whether you are currently funded or not, assume that some entity would fund your Rust Project contributions. What kind of arrangement would you prefer?