fix truncated cpu usage in detailed view if more than 3 digits

Author: vandabbin

src/btop_draw.cpp

@@ -1969,11 +1969,7 @@ namespace Proc {
 			const int item_width = floor((double)(d_width - 2) / min(item_fit, 8));
 
 			//? Graph part of box
-			string cpu_str = (alive or pause_proc_list ? fmt::format("{:.2f}", detailed.entry.cpu_p) : "");
-			if (alive or pause_proc_list) {
-				cpu_str.resize(4);
-				if (cpu_str.ends_with('.')) { cpu_str.pop_back(); cpu_str.pop_back(); }
-			}
+			string cpu_str = (alive or pause_proc_list ? fmt::format("{:>4.{}f}", detailed.entry.cpu_p, detailed.entry.cpu_p < 9.995f ? 2 : detailed.entry.cpu_p < 99.95f ? 1 : 0) : "");
 			out += Mv::to(d_y + 1, dgraph_x + 1) + Fx::ub + detailed_cpu_graph(detailed.cpu_percent, (redraw or data_same or not alive))
 				+ Mv::to(d_y + 1, dgraph_x + 1) + Theme::c("title") + Fx::b + rjust(cpu_str, 4) + "%";
 			for (int i = 0; const auto& l : {'C', 'P', 'U'})