Fix cutting off first letter of hashtag links sometimes in web UI (#24623)

app/javascript/mastodon/components/status_content.jsx

@@ -104,7 +104,7 @@ class StatusContent extends React.PureComponent {
         link.setAttribute('href', `/@${mention.get('acct')}`);
       } else if (link.textContent[0] === '#' || (link.previousSibling && link.previousSibling.textContent && link.previousSibling.textContent[link.previousSibling.textContent.length - 1] === '#')) {
         link.addEventListener('click', this.onHashtagClick.bind(this, link.text), false);
-        link.setAttribute('href', `/tags/${link.text.slice(1)}`);
+        link.setAttribute('href', `/tags/${link.text.replace(/^#/, '')}`);
       } else {
         link.setAttribute('title', link.href);
         link.classList.add('unhandled-link');