Improve criteria handling

This commit changes how commands decide what container to act on.
Commands get the current container though `current_container`, a global
defined in sway/commands.c. If a criteria is given before a command,
then the following command will be run once for every container the
criteria matches with a reference to the matching container in
'current_container'. Commands should use this instead of
`get_focused_container()` from now on.

This commit also fixes a few (minor) mistakes made in implementing marks
such as non-escaped arrows in sway(5) and calling the "mark" command
"floating" by accident. It also cleans up `criteria.c` in a few places.

1 files changed, 1 insertions, 1 deletions

diff --git a/sway/commands/unmark.c b/sway/commands/unmark.c
index 34a2ae44..ac213261 100644
--- a/sway/commands/unmark.c
+++ b/sway/commands/unmark.c
@@ -5,7 +5,7 @@
 #include "stringop.h"
 
 struct cmd_results *cmd_unmark(int argc, char **argv) {
-        swayc_t *view = get_focused_container(&root_container);
+        swayc_t *view = current_container;
 
         if (view->marks) {
                 if (argc) {