#bem: Mod value to be `[{enums}?, ...bools]`

**NB! no control on repeat in string array**

```typescript
baseQ1 = ["mod1", "mod2"]
baseQ2 = {mod1: true, mod2: true, mod3: "v1", mod4: "v2"}
// next
baseQ = [{mod3: "v1", mod4: "v2"}, "mod1", "mod2"]
```