Remove spaces from import statements (#7859)

**Summary** Remove spaces from import statements such as 

```python
import tqdm .  tqdm
from tqdm .    auto import tqdm
```

See also #7760 for a better solution.

**Test Plan** New fixtures

crates/ruff_python_formatter/resources/test/fixtures/ruff/statement/import.py

@@ -9,6 +9,8 @@ import foo\
 from foo\
     .bar import baz
 
+import tqdm  . tqdm
+
 # At the top-level, force one empty line after an import, but allow up to two empty
 # lines.
 import os

crates/ruff_python_formatter/resources/test/fixtures/ruff/statement/import_from.py

@@ -35,3 +35,5 @@ from a import \
     (  # comment
     bar,
 )
+
+from tqdm .  auto import tqdm