Fix web home feed sizing and related issues (close #432) (#475)

* Fix web home feed sizing (close #432)

* Fix lint

* Fix positioning of profile not found error

* Fix load latest on mobile

* Fix overflow issues on mobile web (visible in postthread)

* Fix bottom pad on mobile web

* Remove old comment

src/view/com/util/load-latest/LoadLatestBtn.tsx

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+export * from './LoadLatestBtnMobile'

src/view/com/util/load-latest/LoadLatestBtn.web.tsx

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+import React from 'react'
+import {StyleSheet, TouchableOpacity} from 'react-native'
+import {Text} from '../text/Text'
+import {usePalette} from 'lib/hooks/usePalette'
+import {UpIcon} from 'lib/icons'
+import {LoadLatestBtn as LoadLatestBtnMobile} from './LoadLatestBtnMobile'
+import {isMobileWeb} from 'platform/detection'
+
+const HITSLOP = {left: 20, top: 20, right: 20, bottom: 20}
+
+export const LoadLatestBtn = ({
+  onPress,
+  label,
+}: {
+  onPress: () => void
+  label: string
+}) => {
+  const pal = usePalette('default')
+  if (isMobileWeb) {
+    return <LoadLatestBtnMobile onPress={onPress} label={label} />
+  }
+  return (
+    <TouchableOpacity
+      style={[pal.view, pal.borderDark, styles.loadLatest]}
+      onPress={onPress}
+      hitSlop={HITSLOP}>
+      <Text type="md-bold" style={pal.text}>
+        <UpIcon size={16} strokeWidth={1} style={[pal.text, styles.icon]} />
+        Load new {label}
+      </Text>
+    </TouchableOpacity>
+  )
+}
+
+const styles = StyleSheet.create({
+  loadLatest: {
+    flexDirection: 'row',
+    position: 'absolute',
+    left: '50vw',
+    // @ts-ignore web only -prf
+    transform: 'translateX(-50%)',
+    top: 30,
+    shadowColor: '#000',
+    shadowOpacity: 0.2,
+    shadowOffset: {width: 0, height: 2},
+    shadowRadius: 4,
+    paddingLeft: 20,
+    paddingRight: 24,
+    paddingVertical: 10,
+    borderRadius: 30,
+    borderWidth: 1,
+  },
+  icon: {
+    position: 'relative',
+    top: 2,
+    marginRight: 5,
+  },
+})

src/view/com/util/load-latest/LoadLatestBtnMobile.tsx

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+import React from 'react'
+import {StyleSheet, TouchableOpacity} from 'react-native'
+import {observer} from 'mobx-react-lite'
+import LinearGradient from 'react-native-linear-gradient'
+import {useSafeAreaInsets} from 'react-native-safe-area-context'
+import {Text} from '../text/Text'
+import {colors, gradients} from 'lib/styles'
+import {clamp} from 'lodash'
+import {useStores} from 'state/index'
+
+const HITSLOP = {left: 20, top: 20, right: 20, bottom: 20}
+
+export const LoadLatestBtn = observer(
+  ({onPress, label}: {onPress: () => void; label: string}) => {
+    const store = useStores()
+    const safeAreaInsets = useSafeAreaInsets()
+    return (
+      <TouchableOpacity
+        style={[
+          styles.loadLatest,
+          !store.shell.minimalShellMode && {
+            bottom: 60 + clamp(safeAreaInsets.bottom, 15, 30),
+          },
+        ]}
+        onPress={onPress}
+        hitSlop={HITSLOP}>
+        <LinearGradient
+          colors={[gradients.blueLight.start, gradients.blueLight.end]}
+          start={{x: 0, y: 0}}
+          end={{x: 1, y: 1}}
+          style={styles.loadLatestInner}>
+          <Text type="md-bold" style={styles.loadLatestText}>
+            Load new {label}
+          </Text>
+        </LinearGradient>
+      </TouchableOpacity>
+    )
+  },
+)
+
+const styles = StyleSheet.create({
+  loadLatest: {
+    position: 'absolute',
+    left: 20,
+    bottom: 35,
+    shadowColor: '#000',
+    shadowOpacity: 0.3,
+    shadowOffset: {width: 0, height: 1},
+  },
+  loadLatestInner: {
+    flexDirection: 'row',
+    paddingHorizontal: 14,
+    paddingVertical: 10,
+    borderRadius: 30,
+  },
+  loadLatestText: {
+    color: colors.white,
+  },
+})