Improve docs, responsive, add Material Icons

Signed-off-by: Hadi <112569860+anotherhadi@users.noreply.github.com>

back/internal/tools/dig/tool.go

@@ -13,7 +13,7 @@ const (
 	name        = "dig"
 	description = "DNS lookup querying A, AAAA, MX, NS, TXT, and SOA records for a domain, or reverse DNS (PTR) for an IP."
 	link        = "https://linux.die.net/man/1/dig"
-	icon        = ""
+	icon        = "mdi:dns"
 )
 
 var recordTypes = []string{"A", "AAAA", "MX", "NS", "TXT", "SOA"}
@@ -67,7 +67,13 @@ func (r *Runner) Run(ctx context.Context, target string, inputType tools.InputTy
 				break
 			}
 			cmd := exec.CommandContext(ctx, "dig", target, rtype, "+noall", "+answer")
-			output, _ := cmd.Output()
+			output, err := cmd.Output()
+			if err != nil {
+				if ctx.Err() != nil {
+					break
+				}
+				continue
+			}
 			result := strings.TrimSpace(string(output))
 			if result == "" {
 				continue