Add error log panel in admin

[Gustry]

Logs are important, this panel should be more advertised and used. Some upgrades should be done, in this PR and later.

Some review on the log panel :

• Increase from 50 to 200 lines, can we increase more ? Or we should a way to scroll more up if necessary, later.
• Rename "Log" to "Admin log", following New lizmap log file to show into lizmap admin. #3831
• Adding a text area for the "error log", [Bug]: Form filter, Locate by layer, Attribute table – status 500 error – Lizmap 3.8.3 #5106 (comment). I didn't add the "Erase button" for this log.
• The new text area is hidden or not according to the flag "sensitive data flag".
  

[nworr]

Nice addition, the tail [..] if part is redundant , it can be moved to a zone ?

[Gustry]

You mean a PHP function to determine the number of line AND a zone for the *.tpl ?

[Gustry]

@nworr I have added a PHP function for the height of the text area.

I must admit a bit a lazy to create a new class extending jZone, just to generate these 2 "small" textarea, is-it what I'm supposed to do ?

Just some note for myself for testing :

jLog::log('A log in lizmapadmin', 'lizmapadmin');
jLog::log('A log in errors', 'error');
jLog::log('A log in warning', 'warning');
jLog::log('A log in notice', 'notice');
jLog::log('A log in default');