Update bmo nag.ini for pybmo

dotfiles/config/bmo/nag.ini

 [nag.stream]
-    master = stconflict wttr timenow
+    main = stconflict wttr timenow
 
 [nag.def.timenow]
     command = date --rfc-3339=seconds
-    expiry = 10 minutes
+    expiry = 10m
     term-color = magenta
 
 [nag.def.stconflict]
     command = find $HOME/st/config/dotfiles* -name "*conflict*" | grep -v st/config/dotfiles/weechat | grep . || true
-    expiry = 3 hours
+    expiry = 3h
     notify-urgency = critical
     term-color = lred
 
 [nag.def.wttr]
     command = curl -s 'wttr.in/Brno?1&n&q&T'
-    expiry = 3 hours
+    expiry = 3h
     notify-urgency = low
     term-color = lblue
 
 [nag.def.fortune]
     command = fortune -s tao
-    expiry = 90 minutes
+    expiry = 90m
     notify-urgency = normal
     term-color = lyellow