Global quick search + "hidden" barcode scanner support

[filp]

What type of PR is this?

• feature

What this PR does / why we need it:

This PR adds two major features, and some small tweaks and fixes around it:

• Support for quick item search via cmd/ctrl+F (with fallback to system search by tapping cmd/ctrl+F again with quick search open)

• Support for consumer USB barcode scanners to aid in item search, for GTIN-12 and GTIN-13 (UPC-A and EAN13)
  • This works by listening for global key events that look like a USB barcode scanner inputting a valid barcode, followed by the 'Enter' key; if this is detected, it generates a valid search query and forwards the user to the search page (these scanners act like a normal numeric keyboard). Effectively, this allows searching for an item by just scanning it, with no additional user action needed.
  • The actual barcode data at the moment is expected to be available under a custom 'Barcode' field, which is not a great long-term solution; a more appropriate solution might be a native barcode item field, or specific per-format barcode fields.

Additionally, it also includes the following:

• Minor fix to the homebox logo on mobile, so that it's more accurately aligned vertically:

• Changes BaseModal to not render modal contents unless modal is active, which prevents specific issues around focus handling (e.g trigger-focus on an input inside a modal)
• Fixes trigger-focus on TextInput not working consistently
• Introduces a temporary solution for custom field search not allowing arbitrary input

Release Notes

- Adds global quick search dialog via keyboard shortcut (cmd+F/ctrl+F)
- Adds initial support for searching for items via consumer USB barcode scanners