multiple improvements to logging

- added style.log table
- removed contextmenu
- use ctrl+click to copy individual log entries
- use icon instead of + or - for log items in logview

data/core/commands/log.lua

@@ -0,0 +1,26 @@
+local core = require "core"
+local command = require "core.command"
+
+command.add("core.logview", {
+  ["log:expand-item"] = function()
+    if core.active_view.hovered_item then
+      core.active_view:expand_item(core.active_view.hovered_item)
+    end
+  end,
+  ["log:copy-entry"] = function()
+    if core.active_view.hovered_item then
+      system.set_clipboard(core.get_log(core.active_view.hovered_item))
+    end
+  end
+})
+
+command.add(nil, {
+  ["log:open-as-doc"] = function()
+    local doc = core.open_doc("logs.txt")
+    core.root_view:open_doc(doc)
+    doc:insert(1, 1, core.get_log())
+  end,
+  ["log:copy-to-clipboard"] = function()
+    system.set_clipboard(core.get_log())
+  end
+})