Fix shared cmd::update value mutation breaking live chart updates

[Salvialf]

• Two table state display callbacks (eqLogic.configure.php and plugin.template.js) mutated the value property of the shared cmd::update event payload object in place, instead of using a local copy for their own HTML-sanitized display.
• This payload object is shared across every listener processing the same event (jeedom.cmd.refreshValue, jeedom.history.graphUpdate, and any other addUpdateFunction callback registered for the same command), so the mutation leaked into all code reading the value afterward, silently turning a numeric value into a string.
• This caused live history chart updates (jeedom.history.graphUpdate) to receive a string instead of a number whenever a page or modal containing one of these table displays was open, breaking the chart's live rendering for that command.
• While at it, aligned the tooltip date format across eqLogic.configure.php, plugin.template.js, cmd.action.slider.shutter.html and two mobile templates with the convention used across nearly all dashboard widget templates ({{Date de valeur}}: before {{Date de collecte}}: , no space before the colon), and added the missing {{}} translation wrapper around those strings in cmd.info.string.multiline.html (mobile), which had never been translatable.