Support high DPI displays

### Prerequisites

- [X] This improvement has not already been suggested.
- [X] This improvement would be generally useful, not specific to my code or setup.

### Engine area

Delphi IDE integration

### Improvement description

DelphiLint displays strangely on high DPI displays, including misaligned text and tiny icons. It should be updated for high DPI support.

### Rationale

4K displays are becoming increasingly common, and the Delphi IDE itself pushes strongly for high DPI support. It can be difficult to use DelphiLint on a large display at the moment.

Start by locating the Delphi IDE integration and its UI resources, then reproduce the reported behavior on a high-DPI display. The work is complete when DelphiLint's text is aligned and its icons are usable at high DPI without impairing normal display scaling.

Written by the indexing model from the issue text.