Minor tweaks to tmux.conf, provision_linux terminal_env, and fish config

.config/fish/config.fish

@@ -10,7 +10,10 @@ function configure_fish
     define_global_variables
     import_sources $uname
     define_aliases $uname
-    ssh_agent_startup
+
+    if set -qx SSH_CONNECTION
+        ssh_agent_startup
+    end
 end
 
 configure_fish

.tmux.conf

@@ -1,6 +1,7 @@
 set -g default-terminal "xterm-256color"
 setw -g mouse on
 setw -g mode-keys vi
+setw -g escape-time 50
 
 set -g prefix C-a
 bind C-a send-prefix

provision_linux

@@ -51,7 +51,8 @@ function terminal_env -d 'Install base terminal utilities and sync configuration
         curl \
         kitty-terminfo \
         fzf \
-        nnn
+        nnn \
+        mosh
 
     set -l arch_pkgs \
         $base_pkgs \