Daily build v26.7.0-b6829bfc32

Install instructions for Windows, macOS and Linux.

Filename pattern: GoldenDict-ng-[version]-[Qt version]-[system name]...

For Linux, the released version is on Flathub → io.github.xiaoyifang.goldendict_ng.

💼 Other

• Fix Windows installer icon missing issues (#2996) - (b6829bf)

Based on branch: staged