feat: add --exact flag to only match exact anime titles (#1851)

[emre-tiryaki]

Adds --exact/--exact-match style flag that filters search results to only those whose title is an exact (case-insensitive) match for the query. Useful for wrapper scripts that risk auto-selecting the wrong show when only one result comes back.

Fixes #1851

Pull Request Template

Type of change

• Bug fix
• Feature
• Documentation update

Description

ramble here

Checklist

• any anime playing
• bumped version

---

• next, prev, replay and select work
• -c history and continue work
• -d downloads work
• -e (select episode) aka -r (range selection) works
• -S select index works
• -q quality works
• -s syncplay works
• -v vlc works
• --dub and regular (sub) mode both work
• --nextep-countdown countdown to next ep works

---

• -h help info is up to date
• Readme is up to date
• Man page is up to date

Additional Testcases

(these don't block a merge)

• --skip ani-skip works
• --no-detach no detach works
• --exit-after-play auto exit after playing works

Copy Pasta

./ani-cli -V
./ani-cli -S 1 -e 1 -d flcl
./ani-cli -S 1 -e 1 -q worst -v flcl
./ani-cli -c -s --dub

[port19x]

@emre-tiryaki did you close this on accident?

[emre-tiryaki]

@port19x yes i did sorry. its my first time creating a PR and i was trying to make a PR.
i made it successfully on #1938

sorry for this mistake.