[4.0] Language reinstall (joomla#30810)

Adds a visual indicator to the button for reinstalling a language by changing the button color

PR for joomla#30808

administrator/components/com_installer/tmpl/languages/default.php

@@ -67,8 +67,9 @@
 							<tr class="row<?php echo $i % 2; ?>">
 								<td>
 									<?php $buttonText = (isset($this->installedLang[0][$language->code]) || isset($this->installedLang[1][$language->code])) ? 'REINSTALL' : 'INSTALL'; ?>
+									<?php $buttonClass = (isset($this->installedLang[0][$language->code]) || isset($this->installedLang[1][$language->code])) ? 'btn btn-success btn-sm' : 'btn btn-primary btn-sm'; ?>
 									<?php $onclick = 'document.getElementById(\'install_url\').value = \'' . $language->detailsurl . '\'; Joomla.submitbutton(\'install.install\');'; ?>
-									<input type="button" class="btn btn-primary btn-sm" value="<?php echo Text::_('COM_INSTALLER_' . $buttonText . '_BUTTON'); ?>" onclick="<?php echo $onclick; ?>">
+									<input type="button" class="<?php echo $buttonClass; ?>" value="<?php echo Text::_('COM_INSTALLER_' . $buttonText . '_BUTTON'); ?>" onclick="<?php echo $onclick; ?>">
 								</td>
 								<th scope="row">
 									<?php echo $language->name; ?>