[BUG] Themes use commented-out directives

[acidghost]

The parser for themes does not handle comments properly. It parses commented-out directives as if they were not commented out.

To Reproduce

Using something like the following will set the color to #7323c3, even if the line starts with a '#'.

theme[cpu_start]="#af5fff"
# theme[cpu_start]="#7323c3"

Expected behavior

The color should have been #af5fff.

Cause

This block does not handle comments at all

btop/src/btop_theme.cpp

Lines 383 to 401 in dd4ada7

	while (not themefile.bad()) {
	themefile.ignore(SSmax, '[');
	if (themefile.eof()) break;
	string name, value;
	getline(themefile, name, ']');
	if (not Default_theme.contains(name)) {
	continue;
	}
	themefile.ignore(SSmax, '=');
	themefile >> std::ws;
	if (themefile.eof()) break;
	if (themefile.peek() == '"') {
	themefile.ignore(1);
	getline(themefile, value, '"');
	}
	else getline(themefile, value, '\n');
	theme_out[name] = value;
	}