fix(selectors): emit valid XPath 1.0 string literals via concat()

Both the Go translator and the V8 runtime escaped " by prepending \,
which XPath 1.0 doesn't accept (its string literals have no escape
syntax). A `text:` value containing a quote produced malformed XPath
that chromedp/document.evaluate rejected.

Use the standard concat() composition: when the value contains both
' and ", split on " and join with `, '"', ` so each fragment is
wrapped in single or double quotes individually.

internal/driver/chrome/translate_test.go

@@ -13,6 +13,9 @@ func TestTranslateStringSelector_KnownKeys(t *testing.T) {
 		{"class:btn-primary", `[class~="btn-primary"]`, false},
 		{"tag:button", `button`, false},
 		{"text:Sign in", `//*[normalize-space(text())="Sign in"]`, true},
+		{`text:Say "hi"`, `//*[normalize-space(text())='Say "hi"']`, true},
+		{`text:it's`, `//*[normalize-space(text())="it's"]`, true},
+		{`text:it's "fine"`, `//*[normalize-space(text())=concat("it's ", '"', "fine", '"', "")]`, true},
 		{"desc:logout", `[aria-label="logout"]`, false},
 		{"label:logout", `[aria-label="logout"]`, false},
 		{"accessibilityLabel:logout", `[aria-label="logout"]`, false},