Further fix button positioning to completely eliminate title overlap

✅ Enhanced Layout Positioning:
- Moved buttons from y=0.89 to y=0.86 for greater clearance from title
- Adjusted main chart from [0.08, 0.32, 0.88, 0.55] to [0.08, 0.28, 0.88, 0.56]
- Adjusted log panel from [0.08, 0.02, 0.88, 0.26] to [0.08, 0.02, 0.88, 0.22]

✅ Visual Improvements:
- Ensures ample white space between chart title and time window buttons
- Maintains optimal chart area for radar data visualization
- Preserves log panel functionality with appropriate sizing
- Creates clear visual hierarchy: Title → Space → Buttons → Chart → Log Panel

This provides definitive separation between the title and interactive controls while maintaining excellent usability and readability.

Author: Radar Distance Monitor

src/radar_distance_monitor.py

@@ -275,23 +275,23 @@ def __init__(self, collectors: List[RadarDataCollector], max_points: int = 100):
         # Set up the plot with an additional text area for recent logs
         self.fig = plt.figure(figsize=(12, 8))
         # Main chart axes (upper area, adjusted for time window buttons)
-        self.ax = self.fig.add_axes([0.08, 0.32, 0.88, 0.55])
+        self.ax = self.fig.add_axes([0.08, 0.28, 0.88, 0.56])
         # Log panel axes (lower area, larger height, placed lower to avoid overlap with legend)
-        self.log_ax = self.fig.add_axes([0.08, 0.02, 0.88, 0.26])
+        self.log_ax = self.fig.add_axes([0.08, 0.02, 0.88, 0.22])
         self.log_ax.axis('off')
         # Increase font size for distance viewing (half previous), and nudge one line down
         self.log_text = self.log_ax.text(0.01, 0.90, "", va='top', ha='left', family='monospace', fontsize=22)
         self.max_log_lines = 8  # retained but unused for now; kept for future toggles
         # Per-host latest log line (timestamp, tag, stream, line)
         self.latest_logs = {collector.host_id: None for collector in collectors}
 
-        # Add time window selection buttons (positioned below title)
+        # Add time window selection buttons (positioned well below title)
         self.time_window_buttons = []
         button_width = 0.08
         button_height = 0.03
         button_spacing = 0.02
         start_x = 0.08
-        button_y = 0.89  # Moved down to avoid overlapping with title
+        button_y = 0.86  # Moved further down to ensure no overlap with title
 
         from matplotlib.widgets import Button