Focus the branch correctly on clicking the branch header

Author: estib-vega

apps/desktop/src/components/v3/BranchCard.svelte

@@ -111,7 +111,9 @@
 				{isNewBranch}
 				readonly={!!forgeBranch}
 				onclick={() => {
-					uiState.stack(stackId).selection.set({ branchName });
+					const stackState = uiState.stack(stackId);
+					stackState.selection.set({ branchName });
+					stackState.activeSelectionId.set({ type: 'branch', branchName, stackId });
 					uiState.project(projectId).drawerPage.set('branch');
 				}}
 				onMenuBtnClick={() => {

apps/desktop/src/components/v3/FileList.svelte

@@ -89,6 +89,7 @@
 		{listMode}
 		selected={idSelection.has(change.path, selectionId)}
 		onclick={(e) => {
+			stackState?.activeSelectionId.set(selectionId);
 			selectFilesInList(e, change, visibleFiles, idSelection, true, idx, selectionId);
 		}}
 	/>