[libshumate/tintou/editorconfig] Add editorconfig file

[Corentin Noël <corentinnoel src gnome org>]

commit 47025645f9323ebe223237561fde7e2de2345c84
Author: Corentin Noël <corentin noel collabora com>
Date:   Thu Apr 14 09:24:16 2022 +0200

    Add editorconfig file
    
    It is a now widely supported editor configuration.
    The spec is available at https://editorconfig.org

 .editorconfig | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
---
diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..e518306
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,35 @@
+# SPDX-FileCopyrightText: 2022 The Shumate Authors
+# SPDX-License-Identifier: CC0-1.0
+
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+trim_trailing_whitespace = true
+
+[*.[ch]]
+indent_size = 2
+indent_style = space
+insert_final_newline = true
+
+[*.ui]
+indent_size = 2
+indent_style = space
+insert_final_newline = true
+
+[*.xml]
+indent_size = 2
+indent_style = space
+
+[meson.build]
+indent_size = 2
+indent_style = space
+
+[*.md]
+max_line_length = 80
+
+[*.css]
+indent_size = 2
+indent_style = space
+insert_final_newline = true