You can turn off the “Show in Sidebar” switch in the add-on and add your own link called whatever you like. See: When I click on custom link added via panel_iframe: it opens the link but then creates a second sidebar - #2 by tom_l
Not going to happen.
There was actually a great deal of community discussion about this last time it was changed and after some community feedback it was changed to its current name.
I would have preferred it was called “ESPHome IDE”, but I’m not going to lose any sleep over it. “Builder” is fine.
Also, drop the combative attitude please.