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/retrodeck.json

@@ -2116,6 +2116,73 @@
       "wolfenstein"
     ]
   },
+  "system_titles": {
+    "3do": "3DO",
+    "amstrad-cpc": "Amstrad CPC",
+    "apple-ii": "Apple II",
+    "apple-iigs": "Apple IIGS",
+    "apple-macintosh-ii": "Apple Macintosh II",
+    "arcade": "Arcade games",
+    "atari-400-800": "Atari 400-800",
+    "atari-5200": "Atari 5200",
+    "atari-7800": "Atari 7800",
+    "atari-jaguar": "Atari Jaguar",
+    "atari-lynx": "Atari Lynx",
+    "atari-st": "Atari ST",
+    "coco": "Tandy CoCo",
+    "coleco-colecovision": "ColecoVision",
+    "commodore-amiga": "Commodore Amiga",
+    "commodore-c64": "Commodore C64",
+    "doom": "Doom",
+    "dragon64": "Dragon 64",
+    "enterprise-64-128": "Enterprise 64-128",
+    "epoch-scv": "Epoch Super Cassette Vision",
+    "fairchild-channel-f": "Fairchild Channel F",
+    "hartung-game-master": "Hartung Game Master",
+    "j2me": "Java J2ME",
+    "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",
+    "neogeo": "SNK Neo Geo",
+    "ngp": "SNK Neo Geo Pocket",
+    "ngpc": "SNK Neo Geo Pocket Color",
+    "nintendo-3ds": "Nintendo 3DS",
+    "nintendo-64dd": "Nintendo 64DD",
+    "nintendo-ds": "Nintendo DS",
+    "nintendo-gb": "Nintendo Game Boy",
+    "nintendo-gba": "Nintendo Game Boy Advance",
+    "nintendo-gbc": "Nintendo Game Boy Color",
+    "nintendo-nes": "Nintendo NES",
+    "nintendo-pokemon-mini": "Nintendo Pokemon Mini",
+    "nintendo-snes": "Nintendo SNES",
+    "odyssey2": "Magnavox Odyssey2",
+    "philips-cdi": "Philips CD-i",
+    "pico8": "Lexaloffle PICO-8",
+    "scummvm": "ScummVM games",
+    "sega-dreamcast": "Sega Dreamcast",
+    "sega-game-gear": "Sega Game Gear",
+    "sega-master-system": "Sega Master System",
+    "sega-mega-cd": "Sega Mega CD",
+    "sega-mega-drive": "Sega Mega Drive",
+    "sega-saturn": "Sega Saturn",
+    "sega32x": "Sega 32X",
+    "sinclair-zx-spectrum": "Sinclair ZX Spectrum",
+    "snk-neogeo-cd": "SNK Neo Geo CD",
+    "sony-playstation": "Sony PlayStation",
+    "sony-playstation-2": "Sony PlayStation 2",
+    "sony-psp": "Sony PlayStation Portable",
+    "supracan": "Funtech Super A'Can",
+    "tiger-game-com": "Tiger Game.com",
+    "triforce": "Sega Triforce",
+    "vectrex": "GCE Vectrex",
+    "vtech-vsmile": "VTech V.Smile",
+    "wolfenstein-3d": "Wolfenstein 3D",
+    "x68000": "Sharp X68000"
+  },
   "files": [
     {
       "dest": "bios/panafz1.bin",