Apply brand tone and writing style fixes - #1529

Running Vale across on the following files affected by this PR:

- cli/sandbox-commands.mdx
- examples/development/vnc-desktop.mdx

Attempting to initialize Vale linter...
No customer vale configuration detected. Using Mintlify's default configuration.
Attempting to run Vale spellcheck...
Vale spellcheck completed successfully.

docs/cli/sandbox-commands.mdx:
	- 8:4        Did you really mean 'msb'?
	- 12:142     Did you really mean 'microsandbox'?
	- 49:53      Did you really mean 'CPUs'?
	- 51:38      Did you really mean 'hotpluggable'?
	- 55:278     Did you really mean 'idempotently'?
	- 73:72      Did you really mean 'rootfs'?
	- 81:14      Did you really mean 'rootfs'?
	- 92:506     Did you really mean 'refcounting'?
	- 94:31      Did you really mean 'rootfs'?
	- 100:372    Did you really mean 'loopback'?
	- 102:5      Did you really mean 'VSock'?
	- 106:169    Did you really mean 'Datagram'?
	- 142:340    Did you really mean 'URIs'?
	- 191:4      Did you really mean 'msb'?
	- 204:4      Did you really mean 'msb'?
	- 215:95     Did you really mean 'Unioned'?
	- 218:4      Did you really mean 'msb'?
	- 242:94     Did you really mean 'Unioned'?
	- 247:4      Did you really mean 'msb'?
	- 265:97     Did you really mean 'Unioned'?
	- 270:4      Did you really mean 'msb'?
	- 283:116    Did you really mean 'reachability'?
	- 287:94     Did you really mean 'Unioned'?
	- 291:4      Did you really mean 'msb'?
	- 295:124    Did you really mean 'keepalive'?
	- 305:95     Did you really mean 'Unioned'?
	- 308:4      Did you really mean 'msb'?
	- 323:257    Did you really mean 'vCPUs'?
	- 325:264    Did you really mean 'onlining'?
	- 325:273    Did you really mean 'CPUs'?
	- 327:9      Did you really mean 'workdir'?
	- 334:45     Did you really mean 'vCPUs'?
	- 336:38     Did you really mean 'hotpluggable'?
	- 348:4      Did you really mean 'msb'?
	- 374:4      Did you really mean 'msb'?
	- 385:111    Did you really mean 'microsandbox'?
	- 393:4      Did you really mean 'msb'?
	- 397:257    Did you really mean 'microsandbox'?
	- 444:44     Did you really mean 'pty'?
	- 444:56     Did you really mean 'pty'?
	- 448:44     Did you really mean 'prepends'?
	- 448:151    Did you really mean 'errno'?
	- 451:4      Did you really mean 'msb'?
	- 472:4      Did you really mean 'msb'?
	- 486:99     Did you really mean 'combinable'?
	- 490:109    Did you really mean 'hotplug'?
	- 492:4      Did you really mean 'msb'?
	- 524:227    Did you really mean 'liveness'?
	- 536:4      Did you really mean 'msb'?
	- 551:4      Did you really mean 'msb'?
	- 564:96     Did you really mean 'Unioned'?
	- 568:4      Did you really mean 'msb'?
	- 583:38     Did you really mean 'CPUs'?
	- 586:278    Did you really mean 'idempotently'?
	- 598:4      Did you really mean 'msb'?
	- 607:4      Did you really mean 'msb'?
	- 609:12     Did you really mean 'msb'?
	- 624:3      Did you really mean 'Subcommand'?
	- 627:40     Did you really mean 'msb'?
	- 627:48     Did you really mean 'libkrunfw'?
	- 628:37     Did you really mean 'msb'?
	- 629:24     Did you really mean 'msb'?
	- 629:29     Did you really mean 'libkrunfw'?
	- 635:10     Did you really mean 'Subcommand'?
	- 639:96     Did you really mean 'reinstalls'?
	- 645:151    Did you really mean 'APICv'?
	- 645:541    Did you really mean 'APICv'?
	- 647:126    Did you really mean 'reflink'?

docs/examples/development/vnc-desktop.mdx:
	- 3:71       Did you really mean 'LXQt'?
	- 9:90       Did you really mean 'framebuffer'?
	- 11:35      Did you really mean 'LXQt'?
	- 11:78      Did you really mean 'QTerminal'?
	- 73:1       Did you really mean 'msb'?
	- 91:240     Did you really mean 'websockify'?
	- 97:6       Did you really mean 'websockify'?
	- 112:144    Did you really mean 'LXQt'?
	- 112:162    Did you really mean 'QTerminal'?
	- 146:1      Did you really mean 'msb'?


Found 78 suggested changes across 2 files in 485.82ms