feat: add i3-current-layout script

i3-current-layout/README.md

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+# i3 Current layout
+
+Displays i3 layout mode of the current window
+
+## Requirements
+
+Dependencies: `jq`
+
+## Installation
+
+The recommended i3blocks config is
+
+```INI
+[i3-current-layout]
+command=$SCRIPT_DIR/i3-current-layout
+color=#DCD427
+interval=1
+```

i3-current-layout/i3-current-layout

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+#!/usr/bin/env bash
+
+# Copyright 2023 Sebastian Plaza
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+i3-msg -t get_tree | jq -r 'recurse(.nodes[];.nodes!=null)|select(.nodes[].focused).layout'