Remove wildcard imports (#5018)

<!--
Please read the "Making a PR" section of
[`CONTRIBUTING.md`](https://github.com/emilk/egui/blob/master/CONTRIBUTING.md)
before opening a Pull Request!

* Keep your PR:s small and focused.
* The PR title is what ends up in the changelog, so make it descriptive!
* If applicable, add a screenshot or gif.
* If it is a non-trivial addition, consider adding a demo for it to
`egui_demo_lib`, or a new example.
* Do NOT open PR:s from your `master` branch, as that makes it hard for
maintainers to test and add commits to your PR.
* Remember to run `cargo fmt` and `cargo clippy`.
* Open the PR as a draft until you have self-reviewed it and run
`./scripts/check.sh`.
* When you have addressed a PR comment, mark it as resolved.

Please be patient! I will review your PR, but my time is limited!
-->

I removed (I hope so) all wildcard imports I found.

For me on my pc this improved the build time:
- for egui -5s
- for eframe -12s

* [x] I have followed the instructions in the PR template

crates/eframe/src/web/mod.rs

@@ -43,7 +43,11 @@ pub use backend::*;
 use wasm_bindgen::prelude::*;
 use web_sys::MediaQueryList;
 
-use input::*;
+use input::{
+    button_from_mouse_event, modifiers_from_kb_event, modifiers_from_mouse_event,
+    modifiers_from_wheel_event, pos_from_mouse_event, primary_touch_pos, push_touches,
+    text_from_keyboard_event, translate_key,
+};
 
 // ----------------------------------------------------------------------------