[cheats] add runtime cheats toggles with master code support (#4334)

add per-cheat runtime toggles (thread-safe).
add master code handling (master code cannot be disabled, as noted in Atmosphere's implementation).
add configurable global / per-game initial states for cheat entries.
remove fixed opcode limits and do some fixes to text parsing / file loading.
do not run debug log while cheat logging is not enabled, to reduce performance impacts.
update the `Using Cheats` document to reflect the changes.

- [x] I have read and followed the [Contribution Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/CONTRIBUTING.md#code-contributions).
- [x] I have read and followed the [AI Policy](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/AI.md)
- [x] I have read and followed the [Coding Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/Coding.md) to the best of my ability.

-------------------

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4334
Reviewed-by: lizzie <lizzie@eden-emu.dev>
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Reviewed-by: John <john@eden-emu.dev>

src/qt_common/config/shared_translation.cpp

@@ -86,6 +86,10 @@ std::unique_ptr<TranslationMap> InitializeTranslations(QObject* parent) {
            tr("Synchronizes CPU core speed with the game's maximum rendering speed to boost FPS "
               "without affecting game speed (animations, physics, etc.).\n"
               "Can help reduce stuttering at lower framerates."));
+    INSERT(Settings, enable_cheats_by_default, tr("Enable cheats by default"),
+           tr("Enables regular cheats when a game starts. Master Code entries are always enabled. "
+              "Individual cheats can still be toggled from Cheats in the menu bar while the game is "
+              "running."));
 
     // Cpu
     INSERT(Settings, cpu_accuracy, tr("Accuracy:"),