php 8.2 quirks

[skliarie]

Latest docker image at erikdubbelboer/phpredisadmin uses php8.2 and reveals several compatibility warnings.
Several "Warning: Cannot modify header information - headers already sent" that I suppressed (but should really be fixed):

vi /src/app/includes/common.inc.php 
ini_set('display_errors', FALSE);

And deprecated ${var} with {$var}:

vi /src/app/index.php
:157
Replace
      $dbinfo = sprintf("$prefix%'.-${padding}d", $d);
with
      $dbinfo = sprintf("$prefix%'.-{$padding}d", $d);

[erikdubbelboer]

I have released a new container that should fix this.