minor #1552 Update .editorconfig (seb-jean)

This PR was merged into the main branch.

Discussion
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Update .editorconfig

I updated from [Symfony repository](https://github.com/symfony/symfony/blob/7.3/.editorconfig)

Commits
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18d8beb Update .editorconfig

.editorconfig

@@ -3,8 +3,17 @@ root = true
 
 ; Unix-style newlines
 [*]
+charset = utf-8
 end_of_line = LF
+insert_final_newline = true
+trim_trailing_whitespace = true
 
-[*.php]
+[*.{php,html,twig}]
 indent_style = space
 indent_size = 4
+
+[*.md]
+max_line_length = 80
+
+[COMMIT_EDITMSG]
+max_line_length = 0