Merge 80a98b3d2a into 5763345204

Cribbed directly from the Element Flatpak's .gitignore file at
https://github.com/flathub/im.riot.Riot/blob/master/.gitignore, simply
because Element is a pretty popular application.

Note in particular that this covers all directories that will be
created by the Flatpak tutorial's suggested `flatpak-builder` command:
https://docs.flatpak.org/en/latest/first-build.html#build-and-install

`repo` is the OSTree repository that the built Flatpak will be
"published" to for testing, `.flatpak-builder` is an internal build
directory, and `builddir` is another, user-specified build directory.

MoonBit.gitignore

@@ -1,53 +0,0 @@
-# Build System Artifacts
-
-# MoonBit default build output directory.
-_build/
-# Local MoonBit package cache directory.
-.mooncakes/
-
-# Coverage and Test Artifacts
-
-# Coverage reports generated by MoonBit tooling.
-moonbit-coverage-*.txt
-# Coverage output directory used by coverage commands.
-_coverage/
-# Bisect runtime coverage data file.
-bisect.coverage
-
-# JavaScript Target Artifacts
-
-# Uncomment if generated JavaScript should be ignored.
-# *.js
-# Source map files generated for JavaScript output.
-*.js.map
-# Node.js dependencies used in JS target workflows.
-node_modules/
-
-# WebAssembly Target Artifacts
-
-# Compiled WebAssembly binaries.
-*.wasm
-# WebAssembly text format output.
-*.wat
-
-# MoonBit Pilot / Agent Artifacts
-
-# MoonBit agent runtime state and temporary files.
-.moonagent/
-
-# LLVM Backend Artifacts
-
-# LLVM textual intermediate representation (IR) files.
-*.ll
-# LLVM bitcode files.
-*.bc
-# Native object files from LLVM/native compilation.
-*.o
-# Generated assembly source files.
-*.s
-# Default executable output name on Unix-like systems.
-*.out
-# Native executable output on Windows.
-*.exe
-# macOS debug symbol bundles.
-*.dSYM/

community/Linux/Flatpak.gitignore

@@ -0,0 +1,3 @@
+.flatpak-builder
+builddir
+repo