Extract mode texts from product files to the POT file

[lslezak]

Problem

• The mode name and description is not translated

Solution

• Extract also the mode name and description into the POT file so they can be translated in Weblate.

Testing

• Tested manually
• This is the POT file diff when running with the new code:

--- products-old.pot    2026-02-05 12:19:26.580260775 +0100
+++ products-new.pot    2026-02-05 12:20:08.688209174 +0100
@@ -16,7 +16,7 @@
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=INTEGER; plural=EXPRESSION;\n"
-"POT-Creation-Date: 2026-2-5 11:19+0000\n"
+"POT-Creation-Date: 2026-02-05 11:20+0000\n"

 # TRANSLATORS: description of product "openSUSE Tumbleweed"
 #: tumbleweed.yaml:8
@@ -62,6 +62,16 @@
 "edge."
 msgstr ""

+# TRANSLATORS: name of the installation mode for product "SUSE Linux Enterprise Server 16.1"
+#: sles_161.yaml:252
+msgid "Immutable"
+msgstr ""
+
+# TRANSLATORS: description of installation mode "Immutable" for product "SUSE Linux Enterprise Server 16.1"
+#: sles_161.yaml:253
+msgid "Immutable system with atomic updates"
+msgstr ""
+
 # TRANSLATORS: description of product "openSUSE Leap Micro 6.2"
 #: leap_micro_62.yaml:9
 msgid ""
@@ -69,6 +79,16 @@
 "containerized and virtualized workloads."
 msgstr ""

+# TRANSLATORS: name of the installation mode for product "SUSE Linux Enterprise Server 16.1"
+#: sles_161.yaml:154
+msgid "Standard"
+msgstr ""
+
+# TRANSLATORS: description of installation mode "Standard" for product "SUSE Linux Enterprise Server 16.1"
+#: sles_161.yaml:155
+msgid "Standard system"
+msgstr ""
+
 # TRANSLATORS: description of product "Leap 16.1"
 #: leap_161.yaml:8
 msgid ""

Additional changes

• Always fomat the time stamps with 2 digit numbers
• Check if the same text is used at more places, in that case merge the entries