Quick access to font size and theme switching #787
Description
Add three buttons to the bottom of the app sidebar like so:
[ a ] [ A ] [ ☾]
a A buttons decrease \ increase font size (goes to the next or previous available font size, does nothing if no further change is possible)
the ☾/ ☀ button switches light/dark theme
Notes:
fontawesome icons can be used for pictograms
<i class="fa-solid fa-sun"></i> and <i class="fa-solid fa-moon"></i> can be used for theme controls
<i class="fa-solid fa-a"></i> with size modifiers can be used for font size control
The setting changes should be applied and saved to the database in the same way as if it is done via Settings dialog
It would be nice to suppress "settings saved" toast, also it may be worth to add a timeout before saving settings