Rework Terminal into a real live console; polish danger buttons and Settings

Terminal panel now opens a genuinely interactive shell (ttyd bound to a
unix socket, proxied through Unraid's own /logterminal/ nginx location —
the same mechanism Unraid's own Docker "Console" button uses) instead of
one-shot exec calls, shown inline with a Disconnect action; bash is the
default shell. Container/shell selectors and action buttons are now
correctly bottom-aligned (root cause: Unraid's theme puts a 10px margin
on every <button>, never reset before).

Destructive actions (Disconnect, Compose/Template Delete, Volumes/Images/
Networks Remove) get a consistent, solid red treatment at rest instead of
only tinting on hover, via new --bad-strong/--bad-contrast tokens.

Settings panel restructured: a real save toolbar instead of a button
buried in an empty-label row, card subtitles, a toggle switch instead of
a bare checkbox, and installed-package versions shown as chips.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

webui/plugins/podman/include/PodmanClient.php

@@ -193,41 +193,6 @@ final class PodmanClient
     // have — see that file's header comment for the full explanation).
     // -------------------------------------------------------------------
 
-    /**
-     * Creates and immediately runs one command inside a container via the
-     * real libpod exec API (POST /containers/{id}/exec, then
-     * POST /exec/{id}/start) and returns its combined stdout+stderr output.
-     * Tty=true is used deliberately so the response is a plain byte stream
-     * with no frame-header demultiplexing needed (see containerLogs() for
-     * the non-TTY case, which does need it).
-     */
-    public function execRun(string $containerId, array $cmd, string $workingDir = ''): string
-    {
-        $createBody = [
-            'AttachStdin' => false,
-            'AttachStdout' => true,
-            'AttachStderr' => true,
-            'Tty' => true,
-            'Cmd' => $cmd,
-        ];
-        if ($workingDir !== '') {
-            $createBody['WorkingDir'] = $workingDir;
-        }
-
-        $created = $this->request('POST', '/containers/' . rawurlencode($containerId) . '/exec', [], false, $createBody);
-        $execId = $created['Id'] ?? null;
-        if (!is_string($execId) || $execId === '') {
-            throw new PodmanApiException('exec create response did not include an Id');
-        }
-
-        $output = $this->requestRaw('POST', '/exec/' . rawurlencode($execId) . '/start', [], [
-            'Detach' => false,
-            'Tty' => true,
-        ]);
-
-        return $output;
-    }
-
     // -------------------------------------------------------------------
     // Pods
     // -------------------------------------------------------------------