Change foldout size priorities

Since the foldouts were reordered to worktrees -> branches -> pull/push, the width constraints should also follow that order.
Otherwise, the resize behavior is unintuitive, see: #81 (comment)

Author: pol-rivero

app/src/lib/stores/app-store.ts

@@ -3185,12 +3185,20 @@ export class AppStore extends TypedBaseStore<IAppState> {
     )
     this.stashedFilesWidth = constrain(this.stashedFilesWidth, 100, filesMax)
 
-    // Allocate branch first (highest priority), then worktree, then
+    // Allocate worktree first (highest priority), then branch, then
     // push-pull. Each subsequent allocation uses the clamped value of the
     // previous to prevent the total from exceeding the available space.
+    const worktreeDropdownMax =
+      available - defaultBranchDropdownWidth - defaultPushPullButtonWidth
+    this.worktreeDropdownWidth = constrain(
+      this.worktreeDropdownWidth,
+      Math.min(available / numButtons - 10, 170),
+      worktreeDropdownMax
+    )
+
     const branchDropdownMax =
       available -
-      (showWorktreeDropdown ? defaultWorktreeDropdownWidth : 0) -
+      (showWorktreeDropdown ? clamp(this.worktreeDropdownWidth) : 0) -
       defaultPushPullButtonWidth
     const minimumBranchDropdownWidth =
       defaultBranchDropdownWidth > available / numButtons
@@ -3202,14 +3210,6 @@ export class AppStore extends TypedBaseStore<IAppState> {
       branchDropdownMax
     )
 
-    const worktreeDropdownMax =
-      available - clamp(this.branchDropdownWidth) - defaultPushPullButtonWidth
-    this.worktreeDropdownWidth = constrain(
-      this.worktreeDropdownWidth,
-      Math.min(available / numButtons - 10, 170),
-      worktreeDropdownMax
-    )
-
     const pushPullButtonMaxWidth =
       available -
       clamp(this.branchDropdownWidth) -