Precache basic profile from posts for instant future navigations (#2795)

* skeleton for caching

* modify some existing logic

* refactor uri resolution query

* add precache feed posts

* adjustments

* remove prefetch on hover (maybe revert, just example)

* fix

* change arg name to match what we want

* optional infinite stale time

* use `ProfileViewDetailed`

* Revert "remove prefetch on hover (maybe revert, just example)"

This reverts commit 08609deb0d.

* add warning comment back for stale time

* remove comment

* store profile with both the handle and did for query key

* remove extra block from revert

* clarify argument name

* remove QT cache

* structure queries the same (put `enabled` at bottom)

* use both `ProfileViewDetailed` and `ProfileView` for the query return type

* placeholder profile header

* remove logs

* remove a few other things we don't need

* add placeholder

* refactor

* refactor

* we don't need this height adjustment now

* use gray banner while loading

* set background color of image to the loading placeholder color

* reorg imports

* add border to header on loading

* Fix style

* Rm radius

* oops

* Undo edit

* Back out type changes

* Tighten some types and moderate shadow

* Move precaching fns to profile where the cache is

* Rename functions to match what they do now

* Remove anys

---------

Co-authored-by: Dan Abramov <dan.abramov@gmail.com>

src/view/com/util/UserBanner.tsx

@@ -3,7 +3,10 @@ import {StyleSheet, View} from 'react-native'
 import {FontAwesomeIcon} from '@fortawesome/react-native-fontawesome'
 import {ModerationUI} from '@atproto/api'
 import {Image} from 'expo-image'
+import {useLingui} from '@lingui/react'
+import {msg} from '@lingui/macro'
 import {colors} from 'lib/styles'
+import {useTheme} from 'lib/ThemeContext'
 import {openCamera, openCropper, openPicker} from '../../../lib/media/picker'
 import {
   usePhotoLibraryPermission,
@@ -13,8 +16,6 @@ import {usePalette} from 'lib/hooks/usePalette'
 import {isWeb, isAndroid} from 'platform/detection'
 import {Image as RNImage} from 'react-native-image-crop-picker'
 import {NativeDropdown, DropdownItem} from './forms/NativeDropdown'
-import {useLingui} from '@lingui/react'
-import {msg} from '@lingui/macro'
 
 export function UserBanner({
   banner,
@@ -26,6 +27,7 @@ export function UserBanner({
   onSelectNewBanner?: (img: RNImage | null) => void
 }) {
   const pal = usePalette('default')
+  const theme = useTheme()
   const {_} = useLingui()
   const {requestCameraAccessIfNeeded} = useCameraPermission()
   const {requestPhotoAccessIfNeeded} = usePhotoLibraryPermission()
@@ -142,7 +144,10 @@ export function UserBanner({
     !((moderation?.blur && isAndroid) /* android crashes with blur */) ? (
     <Image
       testID="userBannerImage"
-      style={styles.bannerImage}
+      style={[
+        styles.bannerImage,
+        {backgroundColor: theme.palette.default.backgroundLight},
+      ]}
       resizeMode="cover"
       source={{uri: banner}}
       blurRadius={moderation?.blur ? 100 : 0}