Use nice spinner on VSCode's terminal and Windows Terminal (#167)

Co-authored-by: Sindre Sorhus <sindresorhus@gmail.com>

index.js

@@ -14,6 +14,12 @@ const PREFIX_TEXT = Symbol('prefixText');
 
 const ASCII_ETX_CODE = 0x03; // Ctrl+C emits this code
 
+const terminalSupportsUnicode = () => (
+	process.platform !== 'win32' ||
+	process.env.TERM_PROGRAM === 'vscode' ||
+	Boolean(process.env.WT_SESSION)
+);
+
 class StdinDiscarder {
 	constructor() {
 		this.requests = 0;
@@ -163,7 +169,7 @@ class Ora {
 			}
 
 			this._spinner = spinner;
-		} else if (process.platform === 'win32') {
+		} else if (!terminalSupportsUnicode()) {
 			this._spinner = cliSpinners.line;
 		} else if (spinner === undefined) {
 			// Set default spinner