Use local fonts to avoid external calls

[Mary-Clb]

Checklist before requesting a review

Please delete options that are not relevant.

• I have performed a self-review of my code.
• I have added tests (when available) that prove my fix is effective or that my feature works.
• I have updated the CHANGELOG with a short functional description of the fix or new feature.
• This change requires a documentation update.

Description

• It fixes # (issue number, if applicable)
• Here is a brief description of what this PR does

Screenshots (if appropriate):

[stonebuzz]

stup.php need to be update too

diff --git a/setup.php b/setup.php
index 9dcbcf9..21bb351 100644
--- a/setup.php
+++ b/setup.php
@@ -61,7 +61,7 @@ function plugin_init_gantt()
     $PLUGIN_HOOKS[Hooks::ADD_JAVASCRIPT]['gantt'][] = 'public/lib/libs.js';
     $PLUGIN_HOOKS[Hooks::ADD_JAVASCRIPT]['gantt'][] = 'js/gantt-helper.js';
 
-    $PLUGIN_HOOKS[Hooks::ADD_CSS]['gantt'][] = 'css/gantt.scss';
+    $PLUGIN_HOOKS[Hooks::ADD_CSS]['gantt'][] = Plugin::getWebDir('gantt').'css/gantt.scss';
 
     $PLUGIN_HOOKS[Hooks::REDEFINE_MENUS]['gantt'] = [
         'GlpiPlugin\Gantt\ProjectTab',
(END)

[stonebuzz]

I’m closing this PR as it was not heading in the right direction, and feedback on the client’s infrastructure was required.