Add item bookmark buttons (#14)

Implemented as a toggle button

- Move init_cap func where web can see it
- Bump version to alpha7

src/cli-start.php

@@ -28,17 +28,3 @@ function cli_title(string $title): void {
     printfn('  | %s | %s |', $title, $appTitle);
     printfn($dashes . PHP_EOL);
 }
-
-/**
- * Capitalize the first letter of the given string
- *
- * @param string $value The string to be capitalized
- * @return string The given string with the first letter capitalized
- */
-function init_cap(string $value): string {
-    return match (strlen($value)) {
-        0       => "",
-        1       => strtoupper($value),
-        default => strtoupper(substr($value, 0, 1)) . substr($value, 1),
-    };
-}