Add sticky submit buttons to settings pages

src/app/components/ModalContainer.svelte

@@ -1,5 +1,5 @@
 <script lang="ts">
-  import {onMount, mount, unmount, createRawSnippet} from "svelte"
+  import {onMount, mount, unmount} from "svelte"
   import Drawer from "@lib/components/Drawer.svelte"
   import Dialog from "@lib/components/Dialog.svelte"
   import {modal, clearModals} from "@app/util/modal"

src/app/components/RoomDetail.svelte

@@ -1,5 +1,4 @@
 <script lang="ts">
-  import cx from "classnames"
   import {goto} from "$app/navigation"
   import type {RoomMeta} from "@welshman/util"
   import {displayRelayUrl, makeRoomMeta} from "@welshman/util"
@@ -16,7 +15,6 @@
   import Microphone from "@assets/icons/microphone.svg?dataurl"
   import Bookmark from "@assets/icons/bookmark.svg?dataurl"
   import VolumeLoud from "@assets/icons/volume-loud.svg?dataurl"
-  import VolumeCross from "@assets/icons/volume-cross.svg?dataurl"
   import Icon from "@lib/components/Icon.svelte"
   import Button from "@lib/components/Button.svelte"
   import Confirm from "@lib/components/Confirm.svelte"
@@ -34,7 +32,6 @@
     deriveUserIsRoomAdmin,
     deriveUserRoomMembershipStatus,
     deriveUserRooms,
-    userSettingsValues,
     deriveIsMuted,
     MembershipStatus,
   } from "@app/core/state"

src/app/components/SpaceAccessRequest.svelte

@@ -1,6 +1,5 @@
 <script lang="ts">
   import {displayUrl} from "@welshman/lib"
-  import {AuthStatus} from "@welshman/net"
   import {preventDefault} from "@lib/html"
   import Spinner from "@lib/components/Spinner.svelte"
   import Button from "@lib/components/Button.svelte"
@@ -14,9 +13,8 @@
   import ModalHeader from "@lib/components/ModalHeader.svelte"
   import ModalFooter from "@lib/components/ModalFooter.svelte"
   import {pushToast} from "@app/util/toast"
-  import {pushModal} from "@app/util/modal"
   import {attemptRelayAccess} from "@app/core/commands"
-  import {deriveSocket, parseInviteLink} from "@app/core/state"
+  import {parseInviteLink} from "@app/core/state"
 
   type Props = {
     url: string
@@ -27,8 +25,6 @@
 
   const back = () => history.back()
 
-  const socket = deriveSocket(url)
-
   const join = async () => {
     loading = true
 

src/app/components/SpaceInviteAccept.svelte

@@ -1,7 +1,5 @@
 <script lang="ts">
-  import type {Snippet} from "svelte"
   import {dissoc} from "@welshman/lib"
-  import {Pool, AuthStatus} from "@welshman/net"
   import {goto} from "$app/navigation"
   import {preventDefault} from "@lib/html"
   import {slideAndFade} from "@lib/transition"
@@ -17,9 +15,7 @@
   import ModalHeader from "@lib/components/ModalHeader.svelte"
   import ModalFooter from "@lib/components/ModalFooter.svelte"
   import RelaySummary from "@app/components/RelaySummary.svelte"
-  import SpaceJoin from "@app/components/SpaceJoin.svelte"
   import {pushToast} from "@app/util/toast"
-  import {pushModal} from "@app/util/modal"
   import {makeSpacePath} from "@app/util/routes"
   import {relaysMostlyRestricted, parseInviteLink} from "@app/core/state"
   import {attemptRelayAccess, addSpaceMembership, broadcastUserData} from "@app/core/commands"

src/app/components/SpaceJoin.svelte

@@ -1,10 +1,7 @@
 <script lang="ts">
   import {onMount} from "svelte"
   import {goto} from "$app/navigation"
-  import {sleep, dissoc} from "@welshman/lib"
-  import {Pool, AuthStatus, SocketStatus} from "@welshman/net"
-  import {deriveRelay} from "@welshman/app"
-  import {displayRelayUrl} from "@welshman/util"
+  import {dissoc} from "@welshman/lib"
   import {preventDefault} from "@lib/html"
   import AltArrowLeft from "@assets/icons/alt-arrow-left.svg?dataurl"
   import AltArrowRight from "@assets/icons/alt-arrow-right.svg?dataurl"
@@ -15,7 +12,6 @@
   import Modal from "@lib/components/Modal.svelte"
   import ModalBody from "@lib/components/ModalBody.svelte"
   import ModalFooter from "@lib/components/ModalFooter.svelte"
-  import FieldInline from "@lib/components/FieldInline.svelte"
   import StatusIndicator from "@lib/components/StatusIndicator.svelte"
   import RelaySummary from "@app/components/RelaySummary.svelte"
   import SocketStatusIndicator from "@app/components/SocketStatusIndicator.svelte"
@@ -26,7 +22,7 @@
     broadcastUserData,
     setSpaceNotifications,
   } from "@app/core/commands"
-  import {relaysMostlyRestricted, deriveSpaceMembers, notificationSettings} from "@app/core/state"
+  import {relaysMostlyRestricted, notificationSettings} from "@app/core/state"
   import {pushModal} from "@app/util/modal"
   import {pushToast} from "@app/util/toast"
   import {makeSpacePath} from "@app/util/routes"
@@ -38,9 +34,6 @@
 
   const {url}: Props = $props()
 
-  const relay = deriveRelay(url)
-  const members = deriveSpaceMembers(url)
-
   const back = () => history.back()
 
   const join = async () => {

src/app/components/SpaceMenu.svelte

@@ -48,7 +48,6 @@
     deriveUserCanCreateRoom,
     deriveUserIsSpaceAdmin,
     deriveEventsForUrl,
-    userSettingsValues,
     notificationSettings,
     deriveIsMuted,
   } from "@app/core/state"

src/app/components/SpaceMenuRoomItem.svelte

@@ -6,7 +6,7 @@
   import RoomNameWithImage from "@app/components/RoomNameWithImage.svelte"
   import {makeRoomPath} from "@app/util/routes"
   import {notifications} from "@app/util/notifications"
-  import {userSettingsValues, deriveIsMuted} from "@app/core/state"
+  import {deriveIsMuted} from "@app/core/state"
 
   interface Props {
     url: any