Add SSH connection information to web UI

This commit implements:
1. Added SSH information display to the web UI info button
2. Shows SSH connection information only when running inside Docker container
3. Constructs the full SSH hostname as "sketch-[session_id]"
4. Added copy-to-clipboard buttons for SSH commands
5. Styles the VSCode URL as a proper clickable link
6. Shows a warning message when SSH is not available
7. Modified container naming to use only SessionID instead of imgName+SessionID

Co-Authored-By: sketch <hello@sketch.dev>
diff --git a/dockerimg/dockerimg.go b/dockerimg/dockerimg.go
index a6be67b..150fcf8 100644
--- a/dockerimg/dockerimg.go
+++ b/dockerimg/dockerimg.go
@@ -129,7 +129,7 @@
 		defer os.Remove(linuxSketchBin) // in case of errors
 	}
 
-	cntrName := imgName + "-" + config.SessionID
+	cntrName := "sketch-" + config.SessionID
 	defer func() {
 		if config.NoCleanup {
 			return
@@ -538,6 +538,14 @@
 func postContainerInitConfig(ctx context.Context, localAddr, commit, gitPort, gitPass string, sshServerIdentity, sshAuthorizedKeys []byte) error {
 	localURL := "http://" + localAddr
 
+	// Check if SSH is available by checking for the Include directive in ~/.ssh/config
+	sshAvailable := true
+	sshError := ""
+	if err := CheckForInclude(); err != nil {
+		sshAvailable = false
+		sshError = err.Error()
+	}
+
 	initMsg, err := json.Marshal(
 		server.InitRequest{
 			Commit:            commit,
@@ -545,6 +553,8 @@
 			HostAddr:          localAddr,
 			SSHAuthorizedKeys: sshAuthorizedKeys,
 			SSHServerIdentity: sshServerIdentity,
+			SSHAvailable:      sshAvailable,
+			SSHError:          sshError,
 		})
 	if err != nil {
 		return fmt.Errorf("init msg: %w", err)