Re-add focus request to ensure caret is present

Fixes #111.

package.json

@@ -1,6 +1,6 @@
 {
     "name": "fwdekker.com",
-    "version": "0.28.1",
+    "version": "0.28.2",
     "description": "The source code of [my personal website](https://fwdekker.com/).",
     "author": "Felix W. Dekker",
     "repository": {

src/main/js/Terminal.ts

@@ -284,6 +284,7 @@ export class Terminal {
         if ((document.getSelection() ?? "").toString() !== "")
             return;
 
+        this.input.focus();
         setTimeout(() => moveCaretToEndOf(this.input.firstChild), 0);
     }