Fix partial HW dithered refreshes sometimes appearing to shift refreshed content (#6267)

* Fix HW dithered partial refreshes sometimes behaving as if the refreshed
content had moved a few pixels to the side...

Probably a kernel issue with the alignment fixup in the EPDC?

* Get rid of the legacy coordinates fixup

It shouldn't be necessary anymore.
And I'd rather fix the root cause, anyway.

* Bump base

(https://github.com/koreader/koreader-base/pull/1116)

* Missed a few DIVs in #6224

frontend/apps/reader/modules/readertypography.lua

@@ -231,7 +231,7 @@ When the book's language tag is not among our presets, no specific features will
                 title = _("Language tags (and hyphenation dictionaries) used since start up"),
                 text = status_text,
                 text_face = Font:getFace("smallinfont"),
-                height = Screen:getHeight() * 4/5,
+                height = math.floor(Screen:getHeight() * 0.8),
             })
         end,
         keep_menu_open = true,