Improve plot controls (linewidth, tick intervals, font sizes)

[yu-wei-c]

This request proposes adding a settings panel feature to control the following plot attributes: linewidth, X/Y tick intervals (e.g., 0:1:10 or 0:2:10), and axis font size (for both X-Axis and Y-Axis tick labels).

Currently, a workaround is available by accessing the axes handle and using the code below:

h_axes = gui_item.get('PF').get('H_AXES');
set(h_axes, 'linewidth', 3)
set(h_axes, 'XTick', 0:0.2:1.0)
set(h_axes, 'YTick', 0:0.2:1.0)
set(h_axes, 'FontSize', 32)

This code adjusts the plot layout as follows:

Before	After