feat: add mergeAll btn

apps/desktop/src/lib/pr/MergeButton.svelte

@@ -4,20 +4,35 @@
 	import { MergeMethod } from '$lib/forge/interface/types';
 	import DropDownButton from '$lib/shared/DropDownButton.svelte';
 	import { persisted, type Persisted } from '@gitbutler/shared/persisted';
-	import { createEventDispatcher } from 'svelte';
+	import { type Props as ButtonProps } from '@gitbutler/ui/Button.svelte';
 
-	export let projectId: string;
-	export let loading = false;
-	export let disabled = false;
-	export let wide = false;
-	export let tooltip = '';
+	interface Props {
+		projectId: string;
+		onclick: (method: MergeMethod) => void;
+		loading?: boolean;
+		disabled?: boolean;
+		wide?: boolean;
+		tooltip?: string;
+		style?: ButtonProps['style'];
+		outline?: boolean;
+	}
+
+	const {
+		projectId,
+		onclick,
+		loading = false,
+		disabled = false,
+		wide = false,
+		tooltip = '',
+		style = 'ghost',
+		outline = true
+	}: Props = $props();
 
 	function persistedAction(projectId: string): Persisted<MergeMethod> {
 		const key = 'projectMergeMethod';
 		return persisted<MergeMethod>(MergeMethod.Merge, key + projectId);
 	}
 
-	const dispatch = createEventDispatcher<{ click: { method: MergeMethod } }>();
 	const action = persistedAction(projectId);
 
 	let dropDown: ReturnType<typeof DropDownButton> | undefined;
@@ -30,16 +45,14 @@
 </script>
 
 <DropDownButton
-	style="ghost"
-	outline
-	{loading}
 	bind:this={dropDown}
+	onclick={() => onclick($action)}
+	{outline}
+	{style}
+	{loading}
 	{wide}
 	{tooltip}
 	{disabled}
-	onclick={() => {
-		dispatch('click', { method: $action });
-	}}
 >
 	{labels[$action]}
 	{#snippet contextMenuSlot()}

apps/desktop/src/lib/pr/PullRequestCard.svelte

@@ -285,10 +285,9 @@
 					disabled={mergability.disabled}
 					tooltip={mergability.tooltip}
 					loading={isMerging}
-					on:click={async (e) => {
+					onclick={async (method) => {
 						if (!pr) return;
 						isMerging = true;
-						const method = e.detail.method;
 						try {
 							await $prService?.merge(method, pr.number);
 							await baseBranchService.fetchFromRemotes();

apps/desktop/src/lib/stack/Stack.svelte

@@ -5,16 +5,23 @@
 	import laneNewSvg from '$lib/assets/empty-state/lane-new.svg?raw';
 	import noChangesSvg from '$lib/assets/empty-state/lane-no-changes.svg?raw';
 	import { Project } from '$lib/backend/projects';
+	import { BaseBranchService } from '$lib/baseBranch/baseBranchService';
 	import Dropzones from '$lib/branch/Dropzones.svelte';
 	import { getForgeListingService } from '$lib/forge/interface/forgeListingService';
+	import { getForgePrService } from '$lib/forge/interface/forgePrService';
+	import { type MergeMethod } from '$lib/forge/interface/types';
+	import { showError } from '$lib/notifications/toasts';
+	import MergeButton from '$lib/pr/MergeButton.svelte';
 	import ScrollableContainer from '$lib/scroll/ScrollableContainer.svelte';
 	import { SETTINGS, type Settings } from '$lib/settings/userSettings';
 	import Resizer from '$lib/shared/Resizer.svelte';
 	import CollapsedLane from '$lib/stack/CollapsedLane.svelte';
 	import { intersectionObserver } from '$lib/utils/intersectionObserver';
+	import * as toasts from '$lib/utils/toasts';
 	import { BranchController } from '$lib/vbranches/branchController';
 	import { FileIdSelection } from '$lib/vbranches/fileIdSelection';
 	import { DetailedCommit, VirtualBranch } from '$lib/vbranches/types';
+	import { VirtualBranchService } from '$lib/vbranches/virtualBranch';
 	import { getContext, getContextStore, getContextStoreBySymbol } from '@gitbutler/shared/context';
 	import { persisted } from '@gitbutler/shared/persisted';
 	import Button from '@gitbutler/ui/Button.svelte';
@@ -29,20 +36,24 @@
 		commitBoxOpen
 	}: { isLaneCollapsed: Writable<boolean>; commitBoxOpen: Writable<boolean> } = $props();
 
+	const vbranchService = getContext(VirtualBranchService);
 	const branchController = getContext(BranchController);
 	const fileIdSelection = getContext(FileIdSelection);
 	const branchStore = getContextStore(VirtualBranch);
+	const baseBranchService = getContext(BaseBranchService);
 	const project = getContext(Project);
+	const prService = getForgePrService();
 	const branch = $derived($branchStore);
 
 	const userSettings = getContextStoreBySymbol<Settings>(SETTINGS);
 	const defaultBranchWidthRem = persisted<number>(24, 'defaulBranchWidth' + project.id);
-	const laneWidthKey = 'laneWidth_';
 	let lastPush = $state<Date | undefined>();
+	let canMergeAll = $state(true);
 
+	const laneWidthKey = 'laneWidth_';
 	let laneWidth: number | undefined = $state();
-
 	let rsViewport = $state<HTMLElement>();
+
 	const branchHasFiles = $derived(branch.files !== undefined && branch.files.length > 0);
 	const branchHasNoCommits = $derived(branch.commits !== undefined && branch.commits.length === 0);
 
@@ -58,6 +69,7 @@
 
 	let scrollEndVisible = $state(true);
 	let isPushingCommits = $state(false);
+	let isMergingSeries = $state(false);
 
 	const { upstreamPatches, branchPatches, hasConflicts } = $derived.by(() => {
 		let hasConflicts = false;