[stable35] fix(core): explicitly list emitted event and use proper component props - #64993

Several components were given props the nextcloud-vue components do not
declare, so they ended up as plain attributes or were dropped:

- the login note cards passed their heading as `title`, and once as
  `class`, so the heading was never rendered
- the empty contents of the legacy search passed their name as `title`
- the account menu avatar used `hide-user-status`, so the status was shown
  even when the user status app provides none
- the password field set `spellchecking` instead of the native `spellcheck`
- the updater misspelled `aria-controls`
- `hideFavorite`, `clear-view-delay`, a duplicated modal `title` and the
  button `loading` of the installer did nothing and are removed

Signed-off-by: Ferdinand Thiessen <opensource@fthiessen.de>
Assisted-by: ClaudeCode:claude-opus-5-5

fix(core): declare the events emitted by the login and menu components

Ten components emitted events without declaring them. Vue 2 does not care,

but Vue 3 also passes an undeclared listener on to the root element, so a

component that re-emits the click of a clickable root would trigger its

parent's handler twice.

Signed-off-by: Ferdinand Thiessen <opensource@fthiessen.de>

Assisted-by: ClaudeCode:claude-opus-5-5

[skip ci]