feat: Add ktlint to backend and format all files

legalconsenthub-backend/.editorconfig

@@ -0,0 +1,29 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_size = 4
+indent_style = space
+insert_final_newline = true
+max_line_length = 120
+tab_width = 4
+trim_trailing_whitespace = true
+
+[*.{kt,kts}]
+indent_size = 4
+max_line_length = 120
+ij_kotlin_allow_trailing_comma = true
+ij_kotlin_allow_trailing_comma_on_call_site = true
+ktlint_standard_package-name = disabled
+
+
+[*.{yaml,yml}]
+indent_size = 2
+
+[*.gradle]
+indent_size = 4
+
+[*.md]
+trim_trailing_whitespace = false
+