refactor(tazjin/emacs): move global-mode-line info into tab-bar

This removes the wonky hack with detecting the bottom right window,
and gives me saner, unified handling of this display in the tab
bar (of which there is only one!)

Change-Id: Id21c6b2472d0c89fc4d000a10a9e90d2ddba86b6
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10165
Reviewed-by: tazjin <tazjin@tvl.su>
Autosubmit: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI

users/tazjin/emacs/config/desktop.el

@@ -109,6 +109,12 @@
 ;; tab-bar related config
 (setq tab-bar-show 1)
 (setq tab-bar-tab-hints t)
+
+(setq tab-bar-format
+      '(tab-bar-format-history
+        tab-bar-format-tabs tab-bar-separator
+        tab-bar-format-align-right tab-bar-format-global))
+
 (setq tab-bar-new-tab-choice
       (lambda () (get-buffer-create "*scratch*")))