checker: Check character boundaries when checking compound patterns

flake: Only use cargo flamegraph, cov, and valgrind on Linux

Add `Dictionary::remove_stem`

Default `forbidden_word_flag` to `Flag(65510)`

Add `HashBag::get_mut` for modifying values

Simplify `hash_bag::iter` test

docs: Fix old reference to default `ahash` hasher

Prepare a v0.3.5 release

deps: Loosen restrictions on hashbrown and foldhash

Add changelog notes for recent fixes

change comment detection logic

skip the BOM if there is one

Prepare a v0.3.4 release

checker: Add unit test for REP end pattern panic

checker: Prefer str::ends_with to indexing arbitrarily