NEW: .editorconfig (#921)

.editorconfig

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+# EditorConfig is awesome: http://EditorConfig.org
+
+# https://github.com/jokeyrhyme/standard-editorconfig
+
+# top-most EditorConfig file
+root = true
+
+# defaults
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+# Bazel: https://bazel.build/
+# https://github.com/bazelbuild/buildtools/blob/master/BUILD.bazel
+[*.{bazel,bzl}]
+indent_size = 4
+indent_style = space
+
+# CSS
+# https://google.github.io/styleguide/htmlcssguide.xml#General_Formatting_Rules
+# http://cssguidelin.es/#syntax-and-formatting
+[*.css]
+indent_size = 2
+indent_style = space
+trim_trailing_whitespace = true
+
+# GNU make
+# https://www.gnu.org/software/make/manual/html_node/Recipe-Syntax.html
+[Makefile]
+indent_style = tab
+
+# Go
+# https://golang.org/cmd/gofmt/
+[{go.mod,*.go}]
+indent_style = tab
+
+# GraphQL
+# https://graphql.org/learn/
+# https://prettier.io
+[*.graphql]
+indent_size = 2
+indent_style = space
+
+# HTML
+# https://google.github.io/styleguide/htmlcssguide.xml#General_Formatting_Rules
+[*.{htm,html}]
+indent_size = 2
+indent_style = space
+trim_trailing_whitespace = true
+
+# Java
+# https://google.github.io/styleguide/javaguide.html#s4.2-block-indentation
+[*.java]
+indent_size = 2
+indent_style = space
+
+# JavaScript, JSON, JSX, JavaScript Modules, TypeScript
+# https://github.com/feross/standard
+# https://prettier.io
+[*.{cjs,js,json,jsx,mjs,ts,tsx}]
+indent_size = 2
+indent_style = space
+
+# Kotlin
+# https://android.github.io/kotlin-guides/style.html#indentation
+[*.{kt,kts}]
+indent_size = 4
+indent_style = space
+
+# LESS
+# https://github.com/less/less-docs#less-standards
+[*.less]
+indent_size = 2
+indent_style = space
+
+# PHP
+# http://www.php-fig.org/psr/psr-2/
+[*.php]
+indent_size = 4
+indent_style = space
+
+# Python
+# https://www.python.org/dev/peps/pep-0008/#code-lay-out
+[*.py]
+indent_size = 4
+indent_style = space
+
+# Ruby
+# http://www.caliban.org/ruby/rubyguide.shtml#indentation
+[*.rb]
+indent_size = 2
+indent_style = space
+
+# Rust
+# https://github.com/rust-lang/rust/blob/master/src/doc/style/style/whitespace.md
+[*.rs]
+indent_size = 4
+indent_style = space
+insert_final_newline = false
+trim_trailing_whitespace = true
+
+# SASS
+# https://sass-guidelin.es/#syntax--formatting
+[*.{sass,scss}]
+indent_size = 2
+indent_style = space
+
+# Shell
+# https://google.github.io/styleguide/shell.xml#Indentation
+[*.{bash,sh,zsh}]
+indent_size = 2
+indent_style = space
+
+# Svelte
+# https://github.com/sveltejs/svelte/blob/master/.editorconfig
+[*.svelte]
+indent_size = 2
+indent_style = tab
+
+# TOML
+# https://github.com/toml-lang/toml/tree/master/examples
+[*.toml]
+indent_size = 2
+indent_style = space
+
+# YAML
+# http://yaml.org/spec/1.2/2009-07-21/spec.html#id2576668
+[*.{yaml,yml}]
+indent_size = 2
+indent_style = space