Refactor haskell-session-interactive-buffer so that it does not call switch-to-buffer-other-window

Currently `haskell-session-interactive-buffer` calls `switch-to-buffer-other-window` and that is on the wrong level of abstraction. Callers of `haskell-session-interactive-buffer` should be refactored to call `switch-to-buffer-other-window` when it is needed. It is expected that most places will not need this call. `haskell-session-interactive-buffer` should not call `switch-to-buffer-other-window`.

These are call sites that need to be looked through if `switch-to-buffer-other-window` is needed:
- [ ] ghci-script-mode.el:60: (let ((buffer (haskell-session-interactive-buffer (haskell-session)))
- [ ] haskell-interactive-mode.el:308: (haskell-session-interactive-buffer session)
- [ ] haskell-interactive-mode.el:330: (with-current-buffer (haskell-session-interactive-buffer session)
- [ ] haskell-interactive-mode.el:368: (with-current-buffer (haskell-session-interactive-buffer session)
- [ ] haskell-interactive-mode.el:394: (with-current-buffer (haskell-session-interactive-buffer session)
- [ ] haskell-interactive-mode.el:480: (with-current-buffer (haskell-session-interactive-buffer session)
- [ ] haskell-interactive-mode.el:505: (with-current-buffer (haskell-session-interactive-buffer session)
- [ ] haskell-interactive-mode.el:515:(defun haskell-session-interactive-buffer (s)
- [ ] haskell-interactive-mode.el:949: (with-current-buffer (haskell-session-interactive-buffer (haskell-interactive-session))
- [ ] haskell-interactive-mode.el:991: (with-current-buffer (haskell-session-interactive-buffer session)
- [ ] haskell-interactive-mode.el:1054: (with-current-buffer (haskell-session-interactive-buffer session)
- [ ] haskell-interactive-mode.el:1093: (with-current-buffer (haskell-session-interactive-buffer session)
- [ ] haskell-menu.el:155: (switch-to-buffer (haskell-session-interactive-buffer session))))
- [ ] haskell-repl.el:111: (with-current-buffer (haskell-session-interactive-buffer session)
- [ ] haskell.el:141: (kill-buffer (haskell-session-interactive-buffer session)))
- [ ] haskell.el:199: (buffer (haskell-session-interactive-buffer (haskell-session))))
- [ ] haskell.el:269: (haskell-session-interactive-buffer (haskell-session)))
- [ ] haskell.el:286: (with-current-buffer (haskell-session-interactive-buffer (haskell-session))
- [ ] haskell.el:376: (buffer (haskell-session-interactive-buffer session)))

Start with haskell-interactive-mode.el:515, where haskell-session-interactive-buffer is defined, then inspect the listed call sites in ghci-script-mode.el, haskell-interactive-mode.el, haskell-menu.el, haskell-repl.el, and haskell.el. Determine which callers need switch-to-buffer-other-window and verify that the helper no longer performs that UI operation while required callers still switch buffers.

Written by the indexing model from the issue text.