fix: stabilize update telemetry layout

Render size, speed, and ETA in dedicated fixed-width columns with tabular numerals so rapidly changing values no longer shift neighboring metrics horizontally.

renderer/styles.css

@@ -2520,19 +2520,32 @@ select.hs-input { max-width: none; width: auto; min-width: 140px; }
   display: flex;
   align-items: baseline;
   justify-content: space-between;
+  flex-wrap: wrap;
   gap: 12px;
 }
 
 #updateProgressDetails {
   min-width: 0;
-  overflow: hidden;
+  display: grid;
+  grid-template-columns: 19ch auto 11ch auto 10ch;
+  align-items: baseline;
+  gap: 5px;
   color: var(--text-dim);
   font-size: 11px;
+  font-variant-numeric: tabular-nums;
   line-height: 1.35;
-  text-overflow: ellipsis;
   white-space: nowrap;
 }
 
+.update-progress-separator {
+  text-align: center;
+}
+
+#updateProgressSpeed,
+#updateProgressEta {
+  text-align: right;
+}
+
 #updateProgressText {
   min-width: 34px;
   max-width: 100%;