Set is-active-in-column to true for unmapped windows (#934)

* Set is-active-in-column to true for unmapped windows

* Update wiki/Configuration:-Window-Rules.md

---------

Co-authored-by: Ivan Molodetskikh <yalterz@gmail.com>

src/window/mapped.rs

@@ -165,7 +165,7 @@ impl Mapped {
             rules,
             need_to_recompute_rules: false,
             is_focused: false,
-            is_active_in_column: false,
+            is_active_in_column: true,
             is_floating: false,
             block_out_buffer: RefCell::new(SolidColorBuffer::new((0., 0.), [0., 0., 0., 1.])),
             animate_next_configure: false,

src/window/mod.rs

@@ -116,7 +116,7 @@ impl<'a> WindowRef<'a> {
 
     pub fn is_active_in_column(self) -> bool {
         match self {
-            WindowRef::Unmapped(_) => false,
+            WindowRef::Unmapped(_) => true,
             WindowRef::Mapped(mapped) => mapped.is_active_in_column(),
         }
     }

wiki/Configuration:-Window-Rules.md

@@ -194,6 +194,8 @@ Matches the window that is the "active" window in its column.
 Contrary to `is-active`, there is always one `is-active-in-column` window in each column.
 It is the window that was last focused in the column, i.e. the one that will gain focus if this column is focused.
 
+<sup>Since: next release</sup> This rule will match `true` during the initial window opening.
+
 ```kdl
 window-rule {
     match is-active-in-column=true