Inline all format arguments where possible

This makes code more readale and concise,
moving all format arguments like `format!("{}", foo)`
into the more compact `format!("{foo}")` form.

The change was automatically created with, so there are far less change
of an accidental typo.

```
cargo clippy --fix -- -A clippy::all -W clippy::uninlined_format_args
```

crates/ide/src/typing.rs

@@ -397,7 +397,7 @@ mod tests {
 
     fn type_char(char_typed: char, ra_fixture_before: &str, ra_fixture_after: &str) {
         let actual = do_type_char(char_typed, ra_fixture_before)
-            .unwrap_or_else(|| panic!("typing `{}` did nothing", char_typed));
+            .unwrap_or_else(|| panic!("typing `{char_typed}` did nothing"));
 
         assert_eq_text!(ra_fixture_after, &actual);
     }