Add tmux config and replace zellij with tmux in zshrc.

Zhrc also has some light refactoring, and has added a zsh local file
which gets sourced if it exists, useful for adding local environment
variables

home/.config/tmux/tmux-create-session.sh

@@ -0,0 +1,5 @@
+#!/bin/zsh
+
+session_name=$1
+tmux new-session -d -s $session_name
+tmux switch-client -t $session_name

home/.config/tmux/tmux-fuzzy-find-session.sh

@@ -0,0 +1,45 @@
+#!/bin/zsh
+
+# Run fzf-tmux in the background and serialize the input
+(
+current_session=$(tmux display-message -p '#S')
+selected=$(tmux list-sessions -F '#S' | grep -v "$current_session" | fzf-tmux -p --expect=enter,del --header="Tmux Sessions (Ent/Del)")
+echo "$selected" > /tmp/fzf-tmux-target
+tmux refresh-client -S
+) &
+
+# Give some time for fzf to initiate and display
+sleep 0.1
+tmux refresh-client -S
+
+# Wait for the fzf-tmux process to complete
+wait
+
+# Read the serialized input
+selected=$(cat /tmp/fzf-tmux-target)
+rm /tmp/fzf-tmux-target
+key=$(head -n1 <<< "$selected")
+target=$(tail -n +2 <<< "$selected")
+
+# Check the pressed key and take appropriate action
+case "$key" in
+    enter)
+        if [ -n "$target" ]; then
+            tmux switch-client -t "$target"
+            tmux display-message "Switched to session: $target"
+        else
+            tmux display-message "No session selected"
+        fi
+        ;;
+    del)
+        if [ -n "$target" ]; then
+            tmux kill-session -t "$target"
+            tmux display-message "Deleted session: $target"
+        else
+            tmux display-message "No session selected"
+        fi
+        ;;
+    *)
+        tmux display-message "Action cancelled"
+        ;;
+esac

home/.config/tmux/tmux-move-pane.sh

@@ -0,0 +1,14 @@
+#!/bin/zsh
+
+source_pane=$(tmux display-message -p '#{pane_id}')
+target_window=$1
+
+window_exists=$(tmux list-windows -F '#I' | grep "^$target_window$")
+
+if [ -z "$window_exists" ]; then
+    tmux break-pane -d -t $target_window
+else
+    target_pane=$(tmux list-panes -t $target_window -F '#{pane_id}' | sort | tail -n 1)
+    tmux join-pane -d -s $source_pane -t $target_pane
+    tmux select-layout -t $target_window main-vertical
+fi

home/.config/tmux/tmux-set-resize-mode.sh

@@ -0,0 +1,13 @@
+#!/bin/zsh
+
+desired_state=$1
+current_state=$(tmux show-environment -g @resize_mode 2>/dev/null | cut -d '=' -f 2)
+
+[ "$current_state" = "$desired_state" ] && exit 0
+
+tmux set -g @tmux_resize_mode $desired_state
+if [ "$desired_state" = "1" ]; then
+    tmux display-message "Resize mode ON"
+else
+    tmux display-message "Resize mode OFF"
+fi