Fix uses of non-standard == in shell tests

Fixes #5357

Author: mawww

rc/filetype/hbs.kak

@@ -100,7 +100,7 @@ define-command -hidden hbs-indent-on-new-line %{
 declare-option bool hbs_highlighters_enabled false
 
 define-command -hidden maybe-add-hbs-to-html %{ evaluate-commands %sh{
-    if [ "$kak_opt_hbs_highlighters_enabled" == "false" ]; then
+    if [ "$kak_opt_hbs_highlighters_enabled" = "false" ]; then
         printf %s "
             add-highlighter shared/html/hbs region '\{\{' '\}\}' ref hbs
             add-highlighter shared/html/tag/hbs region '\{\{' '\}\}' ref hbs

rc/windowing/hyprland.kak

@@ -4,7 +4,7 @@ provide-module hyprland %{
 # Ensure we're actually in Hyprland
 evaluate-commands %sh{
     [ -z "${kak_opt_windowing_modules}" ] ||
-    [ "$XDG_CURRENT_DESKTOP"  == "Hyprland" ] &&
+    [ "$XDG_CURRENT_DESKTOP"  = "Hyprland" ] &&
     [ -n "$HYPRLAND_INSTANCE_SIGNATURE" ] ||
     echo 'fail hyprland not detected'
 }