fix: "Mention highlight and cursor hover highlight has different corner radius" (#8384)
fix: "Mention highlight and cursor hover highlight has different corner radius" (#8384)

* fix: mention tile and hover highlight's same border radius

* style-lint fix

* update: mention tile and hover highlight's same border radius
matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk