fix(library/calendar): match English rendering of links and dashes

Suppress self-referential links that the English page does not render
(Calendar, TextCalendar, timegm, IllegalMonthError) with the ! prefix,
and write range dashes as an en dash, since the zh_TW build does not
convert -- the way the English build does.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Author: lilwad-0730

library/calendar.po

@@ -63,7 +63,7 @@ msgid ""
 "the first day of the week. :const:`MONDAY` is ``0`` (the default), :const:"
 "`SUNDAY` is ``6``."
 msgstr ""
-"建立 :class:`Calendar` 物件。*firstweekday* 是一個指定一週第一天的整數，:"
+"建立 :class:`!Calendar` 物件。*firstweekday* 是一個指定一週第一天的整數，:"
 "const:`MONDAY` 是 ``0``\\ （預設值），:const:`SUNDAY` 是 ``6``。"
 
 #: ../../library/calendar.rst:36
@@ -72,16 +72,16 @@ msgid ""
 "preparing the calendar data for formatting. This class doesn't do any "
 "formatting itself. This is the job of subclasses."
 msgstr ""
-":class:`Calendar` 物件提供一些方法來為日曆資料的格式化做準備。這個類別本身不"
+":class:`!Calendar` 物件提供一些方法來為日曆資料的格式化做準備。這個類別本身不"
 "做任何格式化，這是子類別的工作。"
 
 #: ../../library/calendar.rst:41
 msgid ":class:`Calendar` instances have the following methods and attributes:"
-msgstr ":class:`Calendar` 實例有以下方法與屬性："
+msgstr ":class:`!Calendar` 實例有以下方法與屬性："
 
 #: ../../library/calendar.rst:45
 msgid "The first weekday as an integer (0--6)."
-msgstr "以整數 (0--6) 表示的一週的第一天。"
+msgstr "以整數 (0–6) 表示的一週的第一天。"
 
 #: ../../library/calendar.rst:47
 msgid ""
@@ -93,7 +93,7 @@ msgstr ""
 
 #: ../../library/calendar.rst:53
 msgid "Return an :class:`int` for the current first weekday (0--6)."
-msgstr "回傳目前設定的一週的第一天，為一個 :class:`int` (0--6)。"
+msgstr "回傳目前設定的一週的第一天，為一個 :class:`int` (0–6)。"
 
 #: ../../library/calendar.rst:55
 msgid "Identical to reading the :attr:`~Calendar.firstweekday` property."
@@ -102,7 +102,7 @@ msgstr "等同於讀取 :attr:`~Calendar.firstweekday` 屬性。"
 #: ../../library/calendar.rst:59
 msgid ""
 "Set the first weekday to *firstweekday*, passed as an :class:`int` (0--6)."
-msgstr "將一週的第一天設定為 *firstweekday*，以 :class:`int` (0--6) 傳入。"
+msgstr "將一週的第一天設定為 *firstweekday*，以 :class:`int` (0–6) 傳入。"
 
 #: ../../library/calendar.rst:61
 msgid "Identical to setting the :attr:`~Calendar.firstweekday` property."
@@ -124,7 +124,7 @@ msgid ""
 "month and all days before the start of the month or after the end of the "
 "month that are required to get a complete week."
 msgstr ""
-"回傳一個在 *year* 年 *month* (1--12) 月的疊代器。這個疊代器會回傳該月的所有日"
+"回傳一個在 *year* 年 *month* (1–12) 月的疊代器。這個疊代器會回傳該月的所有日"
 "期（:class:`datetime.date` 物件）以及在該月之前及之後用來組成完整一週的日期。"
 
 #: ../../library/calendar.rst:80
@@ -230,7 +230,7 @@ msgstr "這個類別用來產生純文字的日曆。"
 
 #: ../../library/calendar.rst:159
 msgid ":class:`TextCalendar` instances have the following methods:"
-msgstr ":class:`TextCalendar` 實例有以下方法："
+msgstr ":class:`!TextCalendar` 實例有以下方法："
 
 #: ../../library/calendar.rst:164
 msgid ""
@@ -544,7 +544,7 @@ msgid ""
 "Returns the day of the week (``0`` is Monday) for *year* (``1970``--...), "
 "*month* (``1``--``12``), *day* (``1``--``31``)."
 msgstr ""
-"回傳 *year* 年 (``1970``--...) *month* 月 (``1``--``12``) *day* 日 (``1``--"
+"回傳 *year* 年 (``1970``–...) *month* 月 (``1``–``12``) *day* 日 (``1``–"
 "``31``) 是週幾（``0`` 是星期一）。"
 
 #: ../../library/calendar.rst:402
@@ -603,7 +603,7 @@ msgid ""
 msgstr ""
 "一個跟日曆無關但方便的函式，它接受一個像 :mod:`time` 模組裡的 :func:`~time."
 "gmtime` 函式回傳的元組，並回傳對應的 Unix 時間戳，假設從 1970 開始及 POSIX 編"
-"碼。事實上，:func:`time.gmtime` 和 :func:`timegm` 是彼此相反的。"
+"碼。事實上，:func:`time.gmtime` 和 :func:`!timegm` 是彼此相反的。"
 
 #: ../../library/calendar.rst:450
 msgid "The :mod:`!calendar` module exports the following data attributes:"
@@ -687,7 +687,7 @@ msgid ""
 ":exc:`IllegalMonthError` is now also a subclass of :exc:`ValueError`. New "
 "code should avoid catching :exc:`IndexError`."
 msgstr ""
-":exc:`IllegalMonthError` 現在也是 :exc:`ValueError` 的子類別。新的程式碼應避"
+":exc:`!IllegalMonthError` 現在也是 :exc:`ValueError` 的子類別。新的程式碼應避"
 "免捕捉 :exc:`IndexError`。"
 
 #: ../../library/calendar.rst:557