Fix escape sequences for quotes and backslashes in cs-CZ.po (#774)

* + Optional environment variables-only configuration of containerized …

Signed-off-by: Richard Dvořák <github@r3d.de>

* Fix escape sequences for quotes and backslashes in cs-CZ.po

Corrected improper escaping of single quotes, double quotes, and backslashes in cs-CZ.po. Updated instances like <a href=\\https:// to <a href=\"https:// and fixed incorrect escape sequences in words like "don't" to "don\'t".

Signed-off-by: Richard Dvořák <github@r3d.de>

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Signed-off-by: Richard Dvořák <github@r3d.de>