static boolean isValidValue(@Nullable String value) {
        return isValidKey(value); // the same for now...
    }
Tests whether {@code value} is valid.

<p>Context keys and values may not be null or empty. A key/value will be
deemed empty if it's length is zero, or if it consists of only space
characters.</p>

<p>An exception is thrown when an invalid value is added to a {@link ContextSet}.</p>

@param value the value to test
@return true if valid, false otherwise.
@since 5.1
api/src/main/java/net/luckperms/api/context/Context.java