Use correct camel casing for JavaScript (#3224)

JavaScript should be spelt with an uppercase 'S' as per seen in [Mozilla](https://developer.mozilla.org/en-US/docs/Web/JavaScript)

Author: jsstrn

templates/base/footer.tmpl

@@ -22,7 +22,7 @@
 						{{end}}
 					</div>
 				</div>
-				<a href="{{AppSubUrl}}/vendor/librejs.html" data-jslicense="1">Javascript licenses</a>
+				<a href="{{AppSubUrl}}/vendor/librejs.html" data-jslicense="1">JavaScript licenses</a>
 				<a href="{{AppSubUrl}}/api/swagger">API</a>
 				<a target="_blank" rel="noopener" href="https://gitea.io">{{.i18n.Tr "website"}}</a>
 				{{if (or .ShowFooterVersion .PageIsAdmin)}}<span class="version">{{GoVer}}</span>{{end}}