Quickly Show/Hide All Fields in Entity View

Description

Problem

Sometimes too many fields should be shown or hidden, no good way to do it now

Updated Manage Fields & columns menu, which includes:

Show / Hide all button
- By default, the button is Hide all (if all or some Fields are visible)
- If no Fields are visible (toggled OFF), the button becomes Show all
Search is now as compact icon-button in idle state. Behavior is same as in View Headers
- Click on icon button expands it and focuses in input
- Clicking outside input area returns it to initial state if nothing was typed
Few cosmetic touches (see Figma for more details)
- Removed icons from "columns" and "fields" sections as now they create extra clutter
- Added hover state on whole List item, since clicking it toggles visibility anyway (drag handles and > arrows have their own hover backgrounds)

https://www.figma.com/design/PNuydKoOLiNlszgQOI2hyr/PA---Entity---Document?node-id=31779-222293&t=07D4c9jBHTmN9uRO-1