* allow classname to be state vars
* simplify join with all literal string vars
* add test case and avoid concat var operation if it's not necessary
* remove silly print statement
* simplify case where there's no var
* don't automatically do class name str to literal var
* delete most references to varr
* [REF-3562][REF-3563] Replace chakra usage (#3872)
* only one mention of var
* delete vars.py why not
* remove reflex.vars
* rename immutable var to var
* rename ivars to vars
* add vars back smh
* ruff
* no more create_safe
* reorder deprecated
* remove raises
* remove all Var.create
* move to new api
* fix unit tests
* fix pyi hopefully
* sort literals
* fix event handler issues
* update poetry
* fix silly issues i'm very silly
* add var_operation_return
* rename immutable to not immutable
* add str type
* it's ruff out there
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Co-authored-by: Elijah Ahianyo <elijahahianyo@gmail.com>
