`dialog` commands conflict with `mecha.contrib.nested_resources`

[rx-dev]

Essentially most of the dialog commands result in the following

ERROR  Expected bracket '[', curly '{', false, identifier, null, number, string or true but got literal '@s'.
File "mcc:default", line 1, column 14
     1 |  dialog clear @s
       :               ^^

[misode]

Fixed in #315