[fix] stop propagation of tap events when triggering reader menu (#2934)

* [fix] stop propagation of tap events
when triggering reader menu
And also get rid of unnecessary screen refreshes on Kindle Voyage.
The "progress" window for dict lookup is also eliminated as most of the time dict lookup is an instant process, and the "progress" window is preserved for wikipedia lookup as it may take longer time to show the result window.

* [up] add an option to disable dictionary fuzzy search

* [fix] tidy up require

* [fix] fix read settings

frontend/apps/reader/modules/readerhighlight.lua

@@ -118,7 +118,7 @@ function ReaderHighlight:clear()
     if self.hold_pos then
         self.hold_pos = nil
         self.selected_text = nil
-        UIManager:setDirty(self.dialog, "partial")
+        UIManager:setDirty(self.dialog, "ui")
         return true
     end
 end
@@ -255,7 +255,7 @@ function ReaderHighlight:onHold(arg, ges)
             table.insert(boxes, self.selected_word.sbox)
             self.view.highlight.temp[self.hold_pos.page] = boxes
         end
-        UIManager:setDirty(self.dialog, "partial")
+        UIManager:setDirty(self.dialog, "ui")
         -- TODO: only mark word?
         -- Unfortunately, CREngine does not return good coordinates
         -- UIManager:setDirty(self.dialog, "partial", self.selected_word.sbox)