Issue title: shinyjs incompatible with html_dependency
 Issue body: Hi,

I think the appended html dependencys in e.g. the f7Button is incompatible with the shinyjs package (e.g. shinyjs38d1:d2b4:3d06:83e8:96a5:8c2:893d:aba5isabled(...)).

At the moment I use this workaround to fix that, but maybe you have a better suggestion:
````
callShinyjs <- function(fctName, ...){
    tags <- list(...)
    
    if (length(tags) == 1&& inherits(tags[[1]], "shiny.tag"))
        return(fctName(...))
    else if (length(tags) == 1 && is.list(tags[[1]])) {
        return(lapply(tags[[1]], function(e) {if (class(e) == 'html_dependency') e else fctName(e)}))
    }
    else  {
        return(lapply(tags, function(e) {if (class(e) == 'html_dependency') e else fctName(e)}))
    }
}
````

Best regards
 Comments: 
 Comment 0: No more dependency is added to `f7Button` in v0.8.0. Let me know if it solves the issue
{'source': 'GithubIssues', 'repo_name_with_owner': 'RinteRface/shinyMobile', 'issue_id': 615868820, 'repo_stars': 291.0}