config: Update VS Code settings

- Add recommended extensions
- Add Git settings
- Edit read-only files
- Edit file exclusions

.vscode/extensions.json

@@ -0,0 +1,11 @@
+{
+	"recommendations": [
+		"DavidAnson.vscode-markdownlint",
+		"EditorConfig.EditorConfig",
+		"sissel.shopify-liquid"
+	],
+	"unwantedRecommendations": [
+		"rebornix.ruby",
+		"wingrunr21.vscode-ruby"
+	]
+}

.vscode/settings.json

@@ -40,6 +40,11 @@
 		"files.encoding": "windows1252",
 		"files.eol": "\r\n"
 	},
+	"[scminput]": {
+		"editor.rulers": [
+			70
+		]
+	},
 	"[scss]": {
 		"editor.defaultFormatter": null,
 		"editor.insertSpaces": true,
@@ -78,15 +83,18 @@
 	},
 	"files.exclude": {
 		".jekyll-cache": true,
-		"*.swp": true,
 		"docs/_site*": true
 	},
 	"files.readonlyInclude": {
-		"**/Gemfile.lock": true
+		"**/Gemfile.lock": true,
+		"**/LICENSE*": true
 	},
 	"files.insertFinalNewline": true,
 	"files.trimFinalNewlines": true,
 	"files.trimTrailingWhitespace": true,
+	"git.inputValidation": true,
+	"git.inputValidationLength": 70,
+	"git.inputValidationSubjectLength": 70,
 	"liquid.config.method": "workspace",
 	"liquid.engine": "jekyll",
 	"markdown.validate.enabled": true,