fix: add eslintrc files for check naming convention

Author: artxe

packages/svelte/scripts/.eslintrc.json

@@ -0,0 +1,11 @@
+{
+	"rules": {
+		"id-match": [
+			"error",
+			"^\\$\\$$|^[_$]?[_$]?[a-z][a-z0-9]*(?:_[a-z]+)*(?:_\\d+)?$|^[A-Z][A-Z0-9]*(?:_[A-Z][A-Z0-9]*)*(?:_\\d+)?$|^(?:[A-Z][a-z0-9]*)+(?:_\\d+)?$",
+			{
+				"onlyDeclarations": true
+			}
+		]
+	}
+}

packages/svelte/src/.eslintrc.json

@@ -0,0 +1,11 @@
+{
+	"rules": {
+		"id-match": [
+			"error",
+			"^\\$\\$$|^[_$]?[_$]?[a-z][a-z0-9]*(?:_[a-z]+)*(?:_\\d+)?$|^[A-Z][A-Z0-9]*(?:_[A-Z][A-Z0-9]*)*(?:_\\d+)?$|^(?:[A-Z][a-z0-9]*)+(?:_\\d+)?$",
+			{
+				"onlyDeclarations": true
+			}
+		]
+	}
+}