Miscellaneous fixes (0.17 beta) (#21867)

* Adjust title prompt to have less rigidity

* Improve motion boxes handling for features that don't require motion

* Improve handling of classes starting with digits

* Improve vehicle nuance

* tweak lpr docs

* Improve grammar

* Don't allow # in face name

* add password requirements to new user dialog

* change password requirements

* Clenaup

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Co-authored-by: Josh Hawkins <32435876+hawkeye217@users.noreply.github.com>

web/public/locales/en/views/faceLibrary.json

@@ -2,7 +2,8 @@
   "description": {
     "addFace": "Add a new collection to the Face Library by uploading your first image.",
     "placeholder": "Enter a name for this collection",
-    "invalidName": "Invalid name. Names can only include letters, numbers, spaces, apostrophes, underscores, and hyphens."
+    "invalidName": "Invalid name. Names can only include letters, numbers, spaces, apostrophes, underscores, and hyphens.",
+    "nameCannotContainHash": "Name cannot contain #."
   },
   "details": {
     "timestamp": "Timestamp",