* Menu: `fillRule` submenu -> `Evenodd` switch.
* Rework SVG attributes in order to bypass useless attributes.
* Fix gjs bug: `Cairo.LineCap.SQUASH` -> `SQUARE`.
* Not to draw dashes if dash.array is `[0, 0]` (case line width is 0).
All key events go through a hidden St Entry.
* Ibus inputs support.
* GS keyboard support, by moving the keyboard box above the drawing area.
* All convenience keybindings of a St Entry (cursor moves, delete, paste, select all ...).
* Add a writing action mode so some keybindings are disabled when writing (e.g. `Delete` and `Ctrl + A`).
* Draw a thin rectangle as text cursor instead of a text character, so moving the cursor is smoother.
Close#29, #34
Use `Main._findModal` instead of `Main.actionMode` as the criterion of the toggle direction.
Main.actionMode is not a safe criterion to know if the area is modal. For example, `Main.actionMode` is modified when toggling overview while drawing.
While attributes are not changed in user.css, they are persistent through drawing mode toggling. Css attributes that are modifiable in the user interface are just default attributes.
Close#27
* Populate 'Open' and 'Save' submenu on opening. It prevents the 'jump'.
* By removing the previous trick, it now give the key-focus to the first item when opening the menu with 'Menu' key.
* Close menu before toggling modal (before because the menu changes `Main.actionMode`).
* Hide the helper and update the grid display when toggling modal.
* Signal `stop-drawing` -> `leave-drawing-mode` for consistence.
* `area.disable` -> area `destroy` event handler.
* `area.isInDrawingMode` -> `area.reactive`.
Keybinding to ungrab keyboard and mouse while drawing remains at the top.
To be aware that this create some problems with the shell (DnD #1 and maybe more ?).
related to #6, #9, #20, #24, #33
abakkk