fix: silence errors on missing files to source

Author: Steven Joseph (asyncmind)

inner.conf

@@ -1,8 +1,8 @@
-source /etc/tmuxpy/common.conf
-source /usr/local/etc/tmuxpy/common.conf
-source ~/.local/etc/tmuxpy/common.conf
-source ~/.tmuxpy/common.conf
-source ~/.tmux/common.conf
+source -q /etc/tmuxpy/common.conf
+source -q /usr/local/etc/tmuxpy/common.conf
+source -q ~/.local/etc/tmuxpy/common.conf
+source -q ~/.tmuxpy/common.conf
+source -q ~/.tmux/common.conf
 set -g prefix C-a
 bind-key a send-prefix
 bind-key C-a last-window

outer.conf

@@ -1,8 +1,8 @@
-source /etc/tmuxpy/common.conf
-source /usr/local/etc/tmuxpy/common.conf
-source ~/.local/etc/tmuxpy/common.conf
-source ~/.tmuxpy/common.conf
-source ~/.tmux/common.conf
+source -q /etc/tmuxpy/common.conf
+source -q /usr/local/etc/tmuxpy/common.conf
+source -q ~/.local/etc/tmuxpy/common.conf
+source -q ~/.tmuxpy/common.conf
+source -q ~/.tmux/common.conf
 set -g prefix C-b
 bind-key b send-prefix
 bind-key C-b last-window