Also improves behaviour parity between Qt and Fullscreen UI,
since the latter used to prompt for system reset even if the game had
no RetroAchievements entry.
Move files from Frontend directory to pcsx2 and/or subdirectories.
Get rid of double GS init.
Combine HostSettings and Host.
Combine Frontend/Achievements.h and Achievements.h.
- Adding the actual corrections from #8048 that were not added by #8119.
- Fixing typos and missing ending periods.
- Unifying the writing of certain terms:
- Memory Card uppercased following Sony's writing (taken from PS2 manual).
- gamefixes/game fixes -> game fixes
- fast forward/fastforward/fast-forward -> fast-forward (taken from Oxford)
- slowmotion/slow motion/slow-motion -> slow-motion (following the same convention as before, as I could not find this in Oxford's)
- framebuffer/frame buffer -> framebuffer
- Xbox name properly uppercased (for Controller settings)
- Correcting RA's Rich Presence to separate it from Discord's Rich Presence (after discussions in the Translations channel).
- Unification of option names in the option area and the hint area.
- Adding a fix for the (currently broken) Stretch Height/Vertical Stretch tooltip.
Stenzek