update keyboard related information

- fixed incorrect model number of current wrist rest
- added words to vscode workspace dicrtionary
- improved modding plans for current keyboard
- added plan for future custom keyboard

.vscode/settings.json

@@ -10,10 +10,15 @@
     "flatpak",
     "FOSS",
     "geteuid",
+    "holee",
+    "keycap",
+    "keycaps",
+    "MATCHA",
     "noto",
     "paru",
     "popen",
     "pytermgui",
+    "swappable",
     "ungoogled"
   ],
   "python.formatting.provider": "black"