Fix notices during export

Notice: Trying to get property of non-object in /home/ess/public_html/wp-includes/general-template.php on line 1471
Add Chinse language

Add Chinese language file。
Adding strings to localizations
Fix string to update the translations

Here, Search as a verb (in line 591, as a noun)
Fixing some misspelled words
Adding new and updated pt-br language files
Fix href url for changelog tab
Increaze min-height css value for add-on divs
更新翻译
Added acf/get_post_id helper

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Updated API functions to use acf/get_post_id filter

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Image field: Fixed JS error caused by new updates to library

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Added $l10n var / filters for all fields

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Updates to the color picker field

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Updates for the date picker field

Signed-off-by: Elliot Condon <e@elliotcondon.com>
New JS updates for file field including option for library

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Fixed JS issue on file field

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Updates to filter 'acf/get_post_id' - validate post_id type to int

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Allow post_id to be numeric or string type

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Updates to image JS

Signed-off-by: Elliot Condon <e@elliotcondon.com>