Update Lazarus.gitignore

[robyscar]

chore: add modern Lazarus/Free Pascal .gitignore template

• Add compiler and linker binaries (*.exe, *.dll, *.so, *.dylib, *.a, *.lib, *.o, *.or, *.ppu, *.compiled, *.dbg, *.rsj)
• Include project backup and output directories (backup/, lib/, units/, *.bak, .~, .$)
• Exclude IDE and user-specific local files (*.lps, *.lfm.bak, *.lpi.bak, lazarus.cfg)
• Handle internationalization and documentation artifacts (*.rst, *.lrt)
• Suppress macOS application bundles (*.app/)

Reasons for making this change

Update the Lazarus .gitignore template to reflect modern Free Pascal and Lazarus IDE standards. The previous template was outdated and missed newer generated outputs, backup conventions, and cross-platform target structures.

• Add modern compiler and linker binaries (*.rsj, *.lib, etc.)
• Include common modern output and backup paths (units/, *.lfm.bak, *.lpi.bak, lazarus.cfg)
• Refresh outdated patterns based on current Lazarus Wiki guidelines

Links to documentation supporting these rule changes

• Lazarus Wiki: Git

Merge and Approval Steps

• I have read the contribution guidelines and understand my PR will be closed if it doesn't meet these guidelines