修复通过 fc-match 获取字体时未正确处理 TTC 文件的问题

[Glavo]

No description provided.

[Copilot]

Pull Request Overview

This PR fixes incorrect handling of TrueType Collection (TTC) font files when discovering fonts via fc-match by parsing the font family and loading all faces on Java 9+.

• Parse fc-match output into separate family and file path values.
• Add reflection-based loading of multiple fonts (Font.loadFonts) on Java 9+ to pick the correct family from TTC collections.
• Include validation and warning logs for malformed output or loading failures.

Comments suppressed due to low confidence (2)

HMCL/src/main/java/org/jackhuang/hmcl/setting/FontManager.java:131

• [nitpick] The variable name results is generic; consider renaming it to outputLines or similar to clarify that it represents the lines from fc-match output.

String[] results = result.split("\\n");

HMCL/src/main/java/org/jackhuang/hmcl/setting/FontManager.java:132

• Add unit tests for the new parsing logic, including cases where fc-match outputs malformed lines or where the output is not exactly two entries.

if (results.length != 2 || results[0].isEmpty() || results[1].isEmpty()) {