[template] Add new templates/zlogin

that sources `login_init.zsh`.

Also refactor templates/zshrc to use a one-liner instead of if/then/fi.

Closes #218

templates/zlogin

@@ -0,0 +1,8 @@
+
+
+#
+# User configuration sourced by login shells
+#
+
+# Initialize zim
+[[ -s ${ZIM_HOME}/login_init.zsh ]] && source ${ZIM_HOME}/login_init.zsh

templates/zshrc

@@ -4,11 +4,8 @@
 # User configuration sourced by interactive shells
 #
 
-# Change default zim location 
+# Change default zim location
 export ZIM_HOME=${ZDOTDIR:-${HOME}}/.zim
 
-# Source zim
-if [[ -s ${ZIM_HOME}/init.zsh ]]; then
-  source ${ZIM_HOME}/init.zsh
-fi
-
+# Start zim
+[[ -s ${ZIM_HOME}/init.zsh ]] && source ${ZIM_HOME}/init.zsh