Update Czech translation (#729)

Minor changes in stylization of main menu entries (traditional titlebar mode).

po/cs.po

@@ -7,7 +7,7 @@ msgstr ""
 "Project-Id-Version: com.github.johnfactotum.Foliate\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2021-04-13 00:21+0200\n"
-"PO-Revision-Date: 2021-04-24 16:08+0200\n"
+"PO-Revision-Date: 2021-05-13 22:17+0200\n"
 "Last-Translator: Pavel Fric <pavelfric@seznam.cz>\n"
 "Language-Team: Czech <translation-team-cs@lists.sourceforge.net>\n"
 "Language: cs\n"
@@ -627,7 +627,7 @@ msgstr "Právo ke kopírování"
 
 #: src/properties.js:643
 msgid "Find on…"
-msgstr "Najít v..."
+msgstr "Najít..."
 
 #: src/theme.js:23
 msgid "Light"
@@ -1248,7 +1248,7 @@ msgstr "Ukončit"
 
 #: src/ui/menuBar.ui:57
 msgid "_Edit"
-msgstr "_Upravit"
+msgstr "Úp_ravy"
 
 #: src/ui/menuBar.ui:66
 msgid "Bookmark Current Location"
@@ -1260,7 +1260,7 @@ msgstr "Převod textu na řeč"
 
 #: src/ui/menuBar.ui:85
 msgid "_View"
-msgstr "_Zobrazit"
+msgstr "_Pohled"
 
 #: src/ui/menuBar.ui:88
 msgid "Toggle Fullscreen"
@@ -1284,7 +1284,7 @@ msgstr "Až dva sloupce"
 
 #: src/ui/menuBar.ui:179
 msgid "_Go"
-msgstr "_Jít"
+msgstr "P_ohyb"
 
 #: src/ui/menuBar.ui:182
 msgid "Go Back"