I disagree.I find myself often forgetting that the button even exists. Haven't ever overshot it so much to have actually clicked it unintentionally, so I'm afraid I can't empathize with your plight. However, when you draw attention to it like that, it is unsightly. Honestly, if someone picks a theme to use, they're probably not going to be changing it every other day, and I'd prefer the nav bar be reserved for things whose convenience is warranted, such as alerts and private messages, obviously.
Putting it in the usermenu is probably also unnecessary.
Giving it a place in https://www.mc-market.org/account/preferences is probably the best idea.
Unfortunately for you, removing the lightbulb won't increase the size of the Alerts bar, thus making it easier to click, so for you I'd recommend simply CTRL +ing your browser.
