[themes] Add "ac" state for battery to all themes

Except for gruvbox-powerline, all themes were missing the new "ac" state
of the battery.

bumblebee/themes/default.json

@@ -101,6 +101,9 @@
 			"charging": {
 				"suffix": " chr "
 			},
+			"AC": {
+				"suffix": " ac "
+			},
 			"discharging-10": {
 				"prefix": " ! ",
 				"suffix": " dis "

bumblebee/themes/powerline.json

@@ -122,6 +122,11 @@
 				"fg": "#494949",
 				"bg": "#41db00"
 			},
+			"AC": {
+				"suffix": "  ",
+				"fg": "#494949",
+				"bg": "#41db00"
+			},
 			"charging": {
 				"prefix": [ "  ", "  ", "  ", "  ", "  " ],
 				"suffix": "  "

bumblebee/themes/solarized-powerline.json

@@ -123,6 +123,11 @@
 				"fg": "#002b36",
 				"bg": "#859900"
 			},
+			"AC": {
+				"suffix": "  ",
+				"fg": "#002b36",
+				"bg": "#859900"
+			},
 			"charging": {
 				"prefix": [ "  ", "  ", "  ", "  ", "  " ],
 				"suffix": "  "

bumblebee/themes/solarized.json

@@ -121,6 +121,11 @@
 				"fg": "#002b36",
 				"bg": "#859900"
 			},
+			"AC": {
+				"suffix": " ac ",
+				"fg": "#002b36",
+				"bg": "#859900"
+			},
 			"charging": {
 				"suffix": " chr "
 			},