make dictionary title, toggle option and button text bold

frontend/ui/widget/button.lua

@@ -34,6 +34,7 @@ function Button:init()
 			text = self.text,
 			bgcolor = 0.0,
 			fgcolor = self.enabled and 1.0 or 0.5,
+			bold = true,
 			face = Font:getFace(self.text_font_face, self.text_font_size)
 		}
 	else

frontend/ui/widget/dictquicklookup.lua

@@ -85,6 +85,7 @@ function DictQuickLookup:update()
 		TextWidget:new{
 			text = self.dictionary,
 			face = self.title_face,
+			bold = true,
 			width = self.width - self.button_padding,
 		}
 	}
@@ -96,6 +97,7 @@ function DictQuickLookup:update()
 		TextBoxWidget:new{
 			text = self.lookupword,
 			face = self.word_face,
+			bold = true,
 			width = self.width,
 		},
 	}

frontend/ui/widget/toggleswitch.lua

@@ -14,12 +14,13 @@ local DEBUG = require("dbg")
 local _ = require("gettext")
 
 local ToggleLabel = TextWidget:new{
+	bold = true,
 	bgcolor = 0,
 	fgcolor = 1,
 }
 
 function ToggleLabel:paintTo(bb, x, y)
-	RenderText:renderUtf8Text(bb, x, y+self._height*0.75, self.face, self.text, true, self.bgcolor, self.fgcolor)
+	RenderText:renderUtf8Text(bb, x, y+self._height*0.75, self.face, self.text, true, self.bold, self.bgcolor, self.fgcolor)
 end
 
 local ToggleSwitch = InputContainer:new{