[love-api] many callback functions are missing

These functions are undefined:

• love.load
• love.quit
• love.errorhandler
• love.lowmemory
• love.threaderror
• love.keyreleased
• love.textedited
• love.textinput
• other mouse, joystick and touch related...

I really don't understand why the api has all these aliases, but in vscode these functions appear as undefined 🤷.

Maybe @alias is a wrong way to define class fields or is the total number of possible class fields limited?

For some reason, some of them show up, but most do not!

首先检查 meta/3rd/love2d/library/love.lua，并将其中的别名与 VS Code 中显示为未定义的所列 LÖVE 回调进行比较。为 love.load、love.quit 和 love.textinput 等回调复现缺失的提示，然后追踪这些定义是如何暴露出来的。当所列的回调函数不再被报告为未定义时，即表示完成。