Fix icon colors in light color preset of modern theme

[passivestar]

Fixes broken icons in the light mode of the new theme

Closes #112254, supersedes #112265, cc @YeldhamDev

Master	PR

[YeldhamDev]

The accent color for toggled buttons is still very dark:

[passivestar]

The accent color for toggled buttons is still very dark

Fixed

[YeldhamDev]

The output icons now have the accent when they shouldn't:

[passivestar]

The output icons now have the accent when they shouldn't

Comments about those needing special styling were copied from the classic theme but not the actual code. Fixed.

Also checked the bottom panel indicators to make sure they have it. Those do have it so no changes are needed there:

godot/editor/themes/theme_modern.cpp

Lines 1639 to 1644 in 0870525

	// Don't tint the icon even when in "pressed" state.
	p_theme->set_color("icon_pressed_color", "BottomPanelButton", Color(1, 1, 1, 1));
	Color icon_hover_color = p_config.icon_normal_color * (p_config.dark_icon_and_font ? 1.15 : 1.0);
	icon_hover_color.a = 1.0;
	p_theme->set_color("icon_hover_color", "BottomPanelButton", icon_hover_color);
	p_theme->set_color("icon_hover_pressed_color", "BottomPanelButton", icon_hover_color);

[akien-mga]

Thanks!