Draft: Update Code Suggestions by language chart primary metric

What does this MR do and why?

Switches to Suggestions accepted as the primary metric to avoid misleading rankings from small sample sizes. Also updates the panel title and visualization name, and reorders the tooltip metrics accordingly.

Screenshots or screen recordings

Before	After
Screen Recording 2025-12-11 at 5.03.28 PM.mov	Screen Recording 2025-12-11 at 4.59.00 PM.mov

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Related to #582754