Update structure and installation path documentation

[NGGTLightKeeper]

Adds and updates documentation to reflect the new dual-location installation architecture.

• Updated Docs/ASLM/content/docs/ASLM/Installer/Installer/MainPage.md to document the new Launcher location UI flow text.
• Updated Docs/ASLM/content/docs/ASLM/Installer/Installer/Services/InstallerService.md to clarify the dual-location payload strategy and new bootstrapping layout.
• Added Docs/ASLM/content/docs/ASLM/Launcher/AppPaths.md for the new AppPaths.cs functionality.
• Added Docs/ASLM/content/docs/ASLM/Launcher/UserBootstrapper.md for the new UserBootstrapper.cs functionality.
• Updated Docs/ASLM/content/docs/ASLM/Launcher/Program.md to outline the dual-location start strategy and logic modifications.
• Updated Docs/ASLM/content/docs/ASLM/Patcher/Program.md to describe the three-tier launcher location resolution process.

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PR created automatically by Jules for task 12476290928951775380 started by @NGGTLightKeeper

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[github-actions]

This pull request was closed automatically by CI.

Head branch jules-docs-dev-* / jules-patchnotes-dev-* is merged by the Jules automation pipeline; an open PR is not required.