reviewstack.dev shows raw lines changed in entire stack instead of just current diff #1084
Description
If you have a stack of diffs, the lines changed badge currently shows total lines changed in entire stack when in reality it should probably just show lines changed in current diff
This was initially implemented in #1081 by using the Github graphQL mutation but it probably should use the result of tokenization similar to https://github.com/facebook/sapling/blob/main/addons/isl/src/ComparisonView/SplitDiffView/syntaxHighlighting.tsx