Add support for disabling plugins (#4141)

* Move timestamp to own file
* Backend changes
* UI changes

internal/api/bool_map.go

@@ -0,0 +1,38 @@
+package api
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+
+	"github.com/99designs/gqlgen/graphql"
+)
+
+func MarshalBoolMap(val map[string]bool) graphql.Marshaler {
+	return graphql.WriterFunc(func(w io.Writer) {
+		err := json.NewEncoder(w).Encode(val)
+		if err != nil {
+			panic(err)
+		}
+	})
+}
+
+func UnmarshalBoolMap(v interface{}) (map[string]bool, error) {
+	m, ok := v.(map[string]interface{})
+	if !ok {
+		return nil, fmt.Errorf("%T is not a map", v)
+	}
+
+	result := make(map[string]bool)
+	for k, v := range m {
+		key := k
+		val, ok := v.(bool)
+		if !ok {
+			return nil, fmt.Errorf("key %s (%T) is not a bool", k, v)
+		}
+
+		result[key] = val
+	}
+
+	return result, nil
+}