fix(xp-bar): don't show attribute if it's 0 (@jackrosenberg) (monkeytypegame#6664)

Only show accPenalty if it's relevant. Still need to build and test :)

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Author: jackrosenberg

frontend/src/ts/elements/xp-bar.ts

@@ -322,7 +322,7 @@ async function animateXpBreakdown(
 
   if (skip) return;
 
-  if (isSafeNumber(breakdown.accPenalty)) {
+  if (isSafeNumber(breakdown.accPenalty) && breakdown.accPenalty > 0) {
     await Misc.sleep(delay);
     total -= breakdown.accPenalty;
     void flashTotalXp(total);
@@ -331,7 +331,7 @@ async function animateXpBreakdown(
 
   if (skip) return;
 
-  if (isSafeNumber(breakdown.incomplete)) {
+  if (isSafeNumber(breakdown.incomplete) && breakdown.incomplete > 0) {
     await Misc.sleep(delay);
     total += breakdown.incomplete;
     void flashTotalXp(total);