Remove 'typeof' in 'typeof this' from AdminPage#buildSettingComponent params

[dsevillamartin]

Changes proposed in this pull request:

• Jetbrains dies with typeof this, so I removed typeof as the functionality seems to remain with this: this
  • VSCode seems to parse it as this: this anyways

Reviewers should focus on:

Screenshot
Screenshots of IDEs before change:

PhpStorm

VSCode

Necessity

• Has the problem that is being solved here been clearly explained?
  • It can't be; it's TypeScript
• If applicable, have various options for solving this problem been considered?
• For core PRs, does this need to be in core, or could it be in an extension?
• Are we willing to maintain this for years / potentially forever?

[davwheat]

It can't be; it's TypeScript

Couldn't have put it better myself 🤣

[davwheat]

hacktoberfest++;

:))