change theme path

on macOS, every time the binary updates, the location of the theme was
updating, causing 'file not found' and default theme loaded.
removing the absolute path seems to have fixed that. I also copied
the themes into ~/.config/btop/themes/

.config/btop/btop.conf##c.Work

@@ -2,7 +2,7 @@
 
 #* Name of a btop++/bpytop/bashtop formatted ".theme" file, "Default" and "TTY" for builtin themes.
 #* Themes should be placed in "../share/btop/themes" relative to binary or "$HOME/.config/btop/themes"
-color_theme = "/usr/local/Cellar/btop/1.3.2/share/btop/themes/nord.theme"
+color_theme = "nord.theme"
 
 #* If the theme set background should be shown, set to False if you want terminal background transparency.
 theme_background = False
@@ -47,7 +47,7 @@ graph_symbol_net = "default"
 graph_symbol_proc = "default"
 
 #* Manually set which boxes to show. Available values are "cpu mem net proc" and "gpu0" through "gpu5", separate values with whitespace.
-shown_boxes = "cpu proc mem"
+shown_boxes = "cpu mem net proc"
 
 #* Update time in milliseconds, recommended 2000 ms or above for better sample times for graphs.
 update_ms = 1000