Buttons: Fixed vertical centering, now pixel perfect (#23140)

packages/grafana-ui/src/components/Button/Button.tsx

@@ -94,6 +94,7 @@ export const getButtonStyles = stylesFactory(({ theme, size, variant }: StylePro
         font-size: ${fontSize};
         padding: ${padding};
         height: ${height};
+        line-height: ${height};
         vertical-align: middle;
         cursor: pointer;
         border: 1px solid ${borderColor};

packages/grafana-ui/src/components/Select/_Select.scss

@@ -219,4 +219,5 @@ $select-input-bg-disabled: $input-bg-disabled;
 
 .select-button {
   display: flex;
+  align-items: center;
 }