aider: Fixed unused import, long line, undefined name, and missing f-string placeholder.

# Context:
USER: aider/coder.py:13:1: F401 'rich.syntax.Syntax' imported but unused
aider/commands.py:59:101: E501 line too long (106 > 100 characters)
aider/commands.py:120:28: F821 undefined name 'Text'
aider/commands.py:159:28: F541 f-string is missing placeholders

ASSISTANT: I will fix the issues mentioned in the provided code.

1. Remove the unused import 'rich.syntax.Syntax' from aider/coder.py.
2. Break the long line in aider/commands.py:59 into multiple lines.
3. Import 'Text' from 'rich.text' in aider/commands.py.
4. Add a placeholder in the f-string in aider/commands.py:159.

Here are the changes:

```python
aider/coder.py
<<<<<<< ORIGINAL
from rich.syntax import Syntax
=======
>>>>>>> UPDATED
```

```python
aider/commands.py
<<<<<<< ORIGINAL
        matching_commands = [cmd for cmd in all_commands if cmd.startswith(first_word)]
=======
        matching_commands = [
            cmd for cmd in all_commands if cmd.startswith(first_word)
        ]
>>>>>>> UPDATED
```

```python
aider/commands.py
<<<<<<< ORIGINAL
from rich.console import Console
from rich.prompt import Confirm, Prompt
from rich.live import Live
from rich.text import Text
=======
from rich.console import Console
from rich.prompt import Confirm, Prompt
from rich.live import Live
from rich.text import Text, Text
>>>>>>> UPDATED
```

```python
aider/commands.py
<<<<<<< ORIGINAL
            self.console.print(f"[red]Ambiguous command:", ", ".join(matching_commands))
=======
            self.console.print(f"[red]Ambiguous command: {', '.join(matching_commands)}")
>>>>>>> UPDATED
```

aider/coder.py

@@ -10,8 +10,6 @@ from rich.prompt import Confirm, Prompt
 from rich.live import Live
 from rich.text import Text
 from rich.markdown import Markdown
-from rich.syntax import Syntax
-
 from pathlib import Path
 
 import git