chore: standardize shebangs, fix lint target, add .editorconfig

- Change all script shebangs to #!/usr/bin/env bash for portability
  (heredocs writing to installed systems keep #!/bin/bash)
- Remove || true from Makefile lint target so shellcheck errors fail the build
- Add .editorconfig for consistent formatting across editors

1 files changed, 23 insertions, 0 deletions

diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..acd3686
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,23 @@
+root = true
+
+[*]
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+charset = utf-8
+
+[*.sh]
+indent_style = space
+indent_size = 4
+
+[Makefile]
+indent_style = tab
+
+[*.conf]
+indent_style = space
+indent_size = 4
+
+[*.org]
+indent_style = space
+indent_size = 2
+trim_trailing_whitespace = false