update translations for 7.1.0 alpha1

and force-fix errors using pocheck

Change-Id: I9695c675df989d1ec478b07cf7190857d8a0f7dd

source/cs/sw/messages.po

@@ -4,7 +4,7 @@ msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: https://bugs.libreoffice.org/enter_bug.cgi?product=LibreOffice&bug_status=UNCONFIRMED&component=UI\n"
 "POT-Creation-Date: 2020-10-23 13:37+0200\n"
-"PO-Revision-Date: 2020-10-14 19:35+0000\n"
+"PO-Revision-Date: 2020-10-25 00:44+0000\n"
 "Last-Translator: Stanislav Horáček <stanislav.horacek@gmail.com>\n"
 "Language-Team: Czech <https://weblate.documentfoundation.org/projects/libo_ui-master/swmessages/cs/>\n"
 "Language: cs\n"
@@ -13,7 +13,7 @@ msgstr ""
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=3; plural=(n==1) ? 0 : (n>=2 && n<=4) ? 1 : 2;\n"
 "X-Accelerator-Marker: ~\n"
-"X-Generator: LibreOffice\n"
+"X-Generator: Weblate 4.1.1\n"
 "X-POOTLE-MTIME: 1563223676.000000\n"
 
 #. v3oJv
@@ -1509,13 +1509,13 @@ msgstr "Obrázek"
 #: sw/inc/strings.hrc:144
 msgctxt "STR_POOLCOLL_JAKETADRESS"
 msgid "Addressee"
-msgstr ""
+msgstr "Příjemce"
 
 #. P7MCv
 #: sw/inc/strings.hrc:145
 msgctxt "STR_POOLCOLL_SENDADRESS"
 msgid "Sender"
-msgstr ""
+msgstr "Odesilatel"
 
 #. AChE4
 #: sw/inc/strings.hrc:146
@@ -1811,7 +1811,7 @@ msgstr "Pravá stránka"
 #: sw/inc/strings.hrc:196
 msgctxt "STR_POOLPAGE_JAKET"
 msgid "Envelope"
-msgstr ""
+msgstr "Obálka"
 
 #. jGSGz
 #: sw/inc/strings.hrc:197
@@ -10981,7 +10981,7 @@ msgstr "_Neměnný obsah"
 #: sw/uiconfig/swriter/ui/flddocumentpage.ui:349
 msgctxt "flddocumentpage|levelft"
 msgid "Level"
-msgstr ""
+msgstr "Úroveň"
 
 #. j7fjs
 #: sw/uiconfig/swriter/ui/flddocumentpage.ui:386