rc conf: treat ini files as conf if they contain a #-comment

*.ini files traditionally use ; but for example the "foot" terminal's
foot.ini uses #. Add a hack to treat ini files as "conf" filetype
if they contain a #-comment (very slim chance of false positives).
This requires to explicitly set comment_line to the default #,
because we set the "ini" filetype earlier.

rc/filetype/conf.kak

@@ -2,6 +2,13 @@ hook global BufCreate .+\.(repo|cfg|properties|desktop) %{
     set-option buffer filetype conf
 }
 
+hook global WinCreate .+\.ini %{
+    try %{
+        execute-keys /^\h*#<ret>
+        set-option buffer filetype conf
+    }
+}
+
 hook global WinSetOption filetype=conf %{
     require-module conf
 }

rc/tools/comment.kak

@@ -45,6 +45,10 @@ hook global BufSetOption filetype=coffee %{
     set-option buffer comment_block_end '###'
 }
 
+hook global BufSetOption filetype=conf %{
+    set-option buffer comment_line '#'
+}
+
 hook global BufSetOption filetype=css %{
     set-option buffer comment_line ''
     set-option buffer comment_block_begin '/*'