fix(autosave): make it use autosave on load

so that when saved it won't lost it

SD-898 SD-657
Merge pull request #492 from petrjasek/devel

fix(autosave): make it use autosave on load
fix(tasks): introduce contenteditable

Instead of auto-height textarea use content editable

SD-735
Merge pull request #488 from nidzix/devel

fix(tasks): Improve create task modal