Fix N_() usages, rearrange a SQL select (#10146)

Fix some of my early blunders in using the `N_()` gettext function. Mini-PR from https://github.com/koreader/koreader/pull/9924#discussion_r1104298501 (@Frenzie).

There was also one line for generating this same `%1 (%2 pages)` text that confusingly uses different ordering in the SQL query output; switched the two SELECT arguments around to make it match the other 5 usages. Works the same as before

plugins/statistics.koplugin/main.lua

@@ -1893,7 +1893,7 @@ function ReaderStatistics:getDatesFromAll(sdays, ptype, book_mode)
             local stop_month = os.time{year=year_end, month=month_end, day=1, hour=0, min=0 }
             table.insert(results, {
                 date_text,
-                T(N_("%1 (%2 page)", "%1 (%2 pages)", tonumber(result_book[2][i])), datetime.secondsToClockDuration(user_duration_format, tonumber(result_book[3][i]), false), tonumber(result_book[2][i])),
+                T(N_("%1 (1 page)", "%1 (%2 pages)", tonumber(result_book[2][i])), datetime.secondsToClockDuration(user_duration_format, tonumber(result_book[3][i]), false), tonumber(result_book[2][i])),
                 callback = function()
                     self:callbackMonthly(start_month, stop_month, date_text, book_mode)
                 end,
@@ -1907,7 +1907,7 @@ function ReaderStatistics:getDatesFromAll(sdays, ptype, book_mode)
             begin_week = begin_week - weekday * 86400
             table.insert(results, {
                 date_text,
-                T(N_("%1 (%2 page)", "%1 (%2 pages)", tonumber(result_book[2][i])), datetime.secondsToClockDuration(user_duration_format, tonumber(result_book[3][i]), false), tonumber(result_book[2][i])),
+                T(N_("%1 (1 page)", "%1 (%2 pages)", tonumber(result_book[2][i])), datetime.secondsToClockDuration(user_duration_format, tonumber(result_book[3][i]), false), tonumber(result_book[2][i])),
                 callback = function()
                     self:callbackWeekly(begin_week, begin_week + 7 * 86400, date_text, book_mode)
                 end,
@@ -1918,7 +1918,7 @@ function ReaderStatistics:getDatesFromAll(sdays, ptype, book_mode)
                 - 60 * tonumber(string.sub(time_book,3,4)) - tonumber(string.sub(time_book,5,6))
             table.insert(results, {
                 date_text,
-                T(N_("%1 (%2 page)", "%1 (%2 pages)", tonumber(result_book[2][i])), datetime.secondsToClockDuration(user_duration_format, tonumber(result_book[3][i]), false), tonumber(result_book[2][i])),
+                T(N_("%1 (1 page)", "%1 (%2 pages)", tonumber(result_book[2][i])), datetime.secondsToClockDuration(user_duration_format, tonumber(result_book[3][i]), false), tonumber(result_book[2][i])),
                 callback = function()
                     self:callbackDaily(begin_day, begin_day + 86400, date_text)
                 end,
@@ -1959,7 +1959,7 @@ function ReaderStatistics:getDaysFromPeriod(period_begin, period_end)
             day=string.sub(result_book[1][i],9,10), hour=0, min=0, sec=0 }
         table.insert(results, {
             result_book[1][i],
-            T(N_("%1 (%2 page)", "%1 (%2 pages)", tonumber(result_book[2][i])), datetime.secondsToClockDuration(user_duration_format, tonumber(result_book[3][i]), false), tonumber(result_book[2][i])),
+            T(N_("%1 (1 page)", "%1 (%2 pages)", tonumber(result_book[2][i])), datetime.secondsToClockDuration(user_duration_format, tonumber(result_book[3][i]), false), tonumber(result_book[2][i])),
             callback = function()
                 local kv = self.kv
                 UIManager:close(kv)
@@ -1984,8 +1984,8 @@ function ReaderStatistics:getBooksFromPeriod(period_begin, period_end, callback_
     local results = {}
     local sql_stmt_res_book = [[
         SELECT  book_tbl.title AS title,
-                sum(page_stat_tbl.duration),
                 count(distinct page_stat_tbl.page),
+                sum(page_stat_tbl.duration),
                 book_tbl.id
         FROM    page_stat AS page_stat_tbl, book AS book_tbl
         WHERE   page_stat_tbl.id_book=book_tbl.id AND page_stat_tbl.start_time BETWEEN %d AND %d
@@ -2003,7 +2003,7 @@ function ReaderStatistics:getBooksFromPeriod(period_begin, period_end, callback_
     for i=1, #result_book.title do
         table.insert(results, {
             result_book[1][i],
-            T(N_("%1 (%2 page)", "%1 (%2 pages)", tonumber(result_book[3][i])), datetime.secondsToClockDuration(user_duration_format, tonumber(result_book[2][i]), false), tonumber(result_book[3][i])),
+            T(N_("%1 (1 page)", "%1 (%2 pages)", tonumber(result_book[2][i])), datetime.secondsToClockDuration(user_duration_format, tonumber(result_book[3][i]), false), tonumber(result_book[2][i])),
             book_id = tonumber(result_book[4][i]),
             callback = function()
                 local kv = self.kv
@@ -2111,7 +2111,7 @@ function ReaderStatistics:getDatesForBook(id_book)
     for i=1, #result_book.dates do
         table.insert(results, {
             result_book[1][i],
-            T(N_("%1 (%2 page)", "%1 (%2 pages)", tonumber(result_book[2][i])), datetime.secondsToClockDuration(user_duration_format, tonumber(result_book[3][i]), false), tonumber(result_book[2][i])),
+            T(N_("%1 (1 page)", "%1 (%2 pages)", tonumber(result_book[2][i])), datetime.secondsToClockDuration(user_duration_format, tonumber(result_book[3][i]), false), tonumber(result_book[2][i])),
             hold_callback = function(kv_page, kv_item)
                 self:resetStatsForBookForPeriod(id_book, result_book[4][i], result_book[5][i], result_book[1][i], function()
                     kv_page:removeKeyValueItem(kv_item) -- Reset, refresh what's displayed