Begin implementing screen thread in lemonbar

.i3/lemonbar/i3_lemonbar_common.py

@@ -3,7 +3,7 @@ from enum import Enum
 
 import i3_lemonbar_config as config
 
-p_bluetooth = None
+p_screen = None
 kill_on_unfocus = []
 
 class bar_mode(Enum):
@@ -61,8 +61,8 @@ def bluetooth(args):
     btcargs = [a.replace('pxc550', '00:16:94:22:29:0E') for a in btcargs]
     btcargs.append('\n')
     inp = ' '.join(btcargs)
-    p_bluetooth.stdin.write(inp)
-    p_bluetooth.stdin.flush()
+    p_screen.stdin.write(inp)
+    p_screen.stdin.flush()
 
 show_secs = False
 def toggle_secs(args):