treewide: fix shellcheck issues

home/zsh/completion-styles.zsh

@@ -1,6 +1,7 @@
 # shellcheck shell=bash
 
 # Style the completion a bit
+# shellcheck disable=2086,2296
 zstyle ':completion:*' list-colors ${(s.:.)LS_COLORS}
 # Show a prompt on selection
 zstyle ':completion:*' select-prompt '%SScrolling active: current selection at %p%s'
@@ -23,6 +24,7 @@ zstyle ':completion:*:*:(^rm):*:*files' ignored-patterns '*?.o' '*?.c~' '*?.old'
 
 # command for process lists, the local web server details and host completion
 # on processes completion complete all user processes
+# shellcheck disable=2016
 zstyle ':completion:*:processes' command 'ps -au$USER'
 
 # Completion formatting and messages

home/zsh/extra-mappings.zsh

@@ -1,5 +1,4 @@
 # shellcheck shell=bash
-# shellcheck disable=2154
 
 # Fix Ctrl+u killing from the cursor instead of the whole line
 bindkey '^u' backward-kill-line