Optimize coloring of homescreen icons.

[UtkarshSiddhpura]

• Optimized the coloring of icons by waiting only for _loadIcon() instead of setTimeout to make them colorize instantly when loaded.
• Fixed the journal icon position to prevent UI glitches. Now it appears in the correct position from the start.
• Enhanced the window resize handling

Before:

https://github.com/llaske/sugarizer/assets/90092555/2335b33e-18e2-47af-8d15-e7d6ce70aefd

After:

https://github.com/llaske/sugarizer/assets/90092555/a2e3c5a1-8af3-4980-8bda-e7a3d1412db1

[llaske]

Waoow, the result is great :star_struck:

Few things however regarding the icon implementation:

• [x] I'm not a big fan of the name waitForLoad, why not just wait
• [x] It will be nice to be able to wait for the non native format too, so the promise should be set here too
• [x] It will be nice to add an unit test on this new method

[UtkarshSiddhpura]

• [x] I'm not a big fan of the name waitForLoad, why not just wait
• [x] It will be nice to be able to wait for the non native format too, so the promise should be set
• [x] It will be nice to add an unit test on this new method

[UtkarshSiddhpura]

Done

[llaske]

It will be nice also to fix the sandbox.html page because it's a good to have a real test of native/non native icon. This page no longer work since the migration to i18next.

[llaske]

Just seen that the fix doesn't work in file:/// mode:

The page should be manually refreshed to display icon colors.