Support rx.cond with Literal Values for tag in rx.icon

[sorousch9]

Describe the bug
Currently, using rx.cond with literal string values for the tag argument in rx.icon raises issues with safety or functionality. This limits the ability to dynamically assign icons based on a conditional state in a clear and concise manner.

To Reproduce
Steps to reproduce the behavior:

rx.icon(tag=rx.cond(MyState.bool, "arrow-up-wide-narrow", "arrow-down-narrow-wide"))

Expected behavior
It should be possible to use rx.cond with literal values for the tag argument safely and without requiring workarounds. The expected functionality would dynamically resolve the tag value based on the conditional expression.

Specifics (please complete the following information):

• Python Version: 3.13.1
• Reflex Version:0.6.7
• OS: WSL2

Additional context
A potential workaround for this issue is to wrap the rx.icon calls within the rx.cond as follows:

rx.cond(
    MyState.bool,
    rx.icon(tag="arrow-up-wide-narrow"),
    rx.icon(tag="arrow-down-narrow-wide")
)

This workaround avoids the direct use of literal values with rx.cond, but a built-in solution would streamline development and improve code clarity.

[linear]

ENG-4361 Support rx.cond with Literal Values for tag in rx.icon

[Lendemor]

I don't think this particular feature would work for rx.icon because the name need to be known during compilation for the import to work.

I'm tempted to mark this one as closed once we merge the dynamic Icon PR, unless we have other use case that would require this outside of rx.icon ?