Revert "feat(tui): overhaul latency sparkline scaling, color, and layout"

This reverts commit 63926e2932.

internal/tui/tab_sites.go

@@ -86,9 +86,6 @@ func (m Model) computeLayout() tableLayout {
 	if sparkW < 15 {
 		sparkW = 15
 	}
-	if sparkW > 62 {
-		sparkW = 62
-	}
 
 	widths[1] = nameW
 	widths[6] = sparkW
@@ -113,9 +110,6 @@ func (m Model) viewSitesTab() string {
 	if sparkWidth < 8 {
 		sparkWidth = 8
 	}
-	if sparkWidth > 60 {
-		sparkWidth = 60
-	}
 
 	var groupRows map[int]bool
 	return m.renderTable(
@@ -126,13 +120,6 @@ func (m Model) viewSitesTab() string {
 			var rows [][]string
 			for i := start; i < end; i++ {
 				site := m.sites[i]
-				rowIdx := i - start
-				var rowBg lipgloss.Color
-				if i == m.cursor {
-					rowBg = m.theme.SelectedBg
-				} else if rowIdx%2 == 1 {
-					rowBg = m.theme.ZebraBg
-				}
 
 				if site.Type == "group" {
 					groupRows[i-start] = true
@@ -144,7 +131,7 @@ func (m Model) viewSitesTab() string {
 						fmtStatus(site.Status, site.Paused, m.isMonitorInMaintenance(site.ID)),
 						subtleStyle.Render("—"),
 						m.groupUptime(site.ID),
-						m.groupSparkline(site.ID, sparkWidth, rowBg),
+						m.groupSparkline(site.ID, sparkWidth),
 						subtleStyle.Render("-"),
 						subtleStyle.Render("—"),
 					})
@@ -179,9 +166,9 @@ func (m Model) viewSitesTab() string {
 				hist, _ := m.engine.GetHistory(site.ID)
 				var spark string
 				if site.Type == "push" {
-					spark = heartbeatSparkline(hist.Statuses, sparkWidth, rowBg)
+					spark = heartbeatSparkline(hist.Statuses, sparkWidth)
 				} else {
-					spark = latencySparkline(hist.Latencies, hist.Statuses, sparkWidth, rowBg)
+					spark = latencySparkline(hist.Latencies, hist.Statuses, sparkWidth)
 				}
 
 				rows = append(rows, []string{