feat: name systems in the install manifests

Each manifest carries system_titles, the name the site prints for every system its files list (Sony PlayStation, not sony-playstation or psx), so the installer can show it. Older installers ignore the field.

install/knulli.json

@@ -5646,6 +5646,82 @@
       "vsmile"
     ]
   },
+  "system_titles": {
+    "3do": "3DO",
+    "acorn-bbc-micro": "Acorn BBC Micro",
+    "adam": "Coleco Adam",
+    "apfm1000": "APF M-1000",
+    "apple-ii": "Apple II",
+    "apple-iigs": "Apple IIGS",
+    "apple-macintosh-ii": "Apple Macintosh II",
+    "archimedes": "Acorn Archimedes",
+    "astrocde": "Bally Astrocade",
+    "atari-400-800": "Atari 400-800",
+    "atari-5200": "Atari 5200",
+    "atari-lynx": "Atari Lynx",
+    "atari-st": "Atari ST",
+    "atom": "Acorn Atom",
+    "camplynx": "Camputers Lynx",
+    "cdi": "Philips CD-i",
+    "chihiro": "Sega Chihiro",
+    "coco": "Tandy CoCo",
+    "commodore-amiga": "Commodore Amiga",
+    "crvision": "VTech CreatiVision",
+    "electron": "Acorn Electron",
+    "entex-advision": "Entex Adventure Vision",
+    "fairchild-channel-f": "Fairchild Channel F",
+    "fm7": "Fujitsu FM-7",
+    "fmtowns": "Fujitsu FM Towns",
+    "fpinball": "Future Pinball tables",
+    "gamate": "Bit Corporation Gamate",
+    "gamecom": "Tiger Game.com",
+    "gamepark-gp32": "GamePark GP32",
+    "gamepock": "Epoch Game Pocket Computer",
+    "gmaster": "Hartung Game Master",
+    "hikaru": "Sega Hikaru",
+    "laser310": "VTech Laser 310",
+    "magnavox-odyssey2": "Magnavox Odyssey2",
+    "mattel-intellivision": "Mattel Intellivision",
+    "microsoft-msx": "Microsoft MSX",
+    "microsoft-xbox": "Microsoft Xbox",
+    "nec-pc-88": "NEC PC-88",
+    "nec-pc-98": "NEC PC-98",
+    "nec-pc-engine": "NEC PC Engine",
+    "nec-pc-fx": "NEC PC-FX",
+    "nintendo-64dd": "Nintendo 64DD",
+    "nintendo-ds": "Nintendo DS",
+    "nintendo-fds": "Nintendo Famicom Disk System",
+    "nintendo-gamecube": "Nintendo GameCube",
+    "nintendo-gba": "Nintendo Game Boy Advance",
+    "nintendo-satellaview": "Nintendo Satellaview",
+    "nintendo-sgb": "Nintendo Super Game Boy",
+    "nintendo-sufami-turbo": "Nintendo SuFami Turbo",
+    "philips-videopac": "Philips Videopac",
+    "scummvm": "ScummVM games",
+    "scv": "Epoch Super Cassette Vision",
+    "sega-dreamcast": "Sega Dreamcast",
+    "sega-dreamcast-arcade": "Sega Dreamcast-based arcade boards",
+    "sega-mega-cd": "Sega Mega CD",
+    "sega-saturn": "Sega Saturn",
+    "sharp-x1": "Sharp X1",
+    "sharp-x68000": "Sharp X68000",
+    "snk-neogeo": "SNK Neo Geo",
+    "snk-neogeo-cd": "SNK Neo Geo CD",
+    "sony-playstation": "Sony PlayStation",
+    "sony-playstation-2": "Sony PlayStation 2",
+    "sony-playstation-3": "Sony PlayStation 3",
+    "sony-playstation-vita": "Sony PlayStation Vita",
+    "supracan": "Funtech Super A'Can",
+    "tandy-vis": "Tandy VIS",
+    "ti99": "Texas Instruments TI-99",
+    "tutor": "Tomy Tutor",
+    "vectrex": "GCE Vectrex",
+    "vgmplay": "Video game music files",
+    "vtech-socrates": "VTech Socrates",
+    "vtech-vsmile": "VTech V.Smile",
+    "xegs": "Atari XEGS",
+    "zc210": "Zelda Classic"
+  },
   "files": [
     {
       "dest": "panafz1.bin",