Adding accurate widget logo for the Widget Small and Widget Add Note in the widget picker screen.

[xenonnn4w]

Fixes

• Improve the widget picker screen. #18074

Approach

Adding proper image files for both widgets.

How Has This Been Tested?

Emulator (API-34)
Emulator (API-25)
Physical Device- (API-34)

az.mp4

bz.mp4

Learning (optional, can help others)

Vector file only support few devices where they can directly used in widget picker screen, in other they broke with an error "couldn't load" . This effect can be bypassed by passing them to through a layout file.

Checklist

Please, go through these checks before submitting the PR.

• You have a descriptive commit message with a short title (first line, max 50 chars).
• You have commented your code, particularly in hard-to-understand areas
• You have performed a self-review of your own code
• UI changes: include screenshots of all affected screens (in particular showing any new or changed strings)
• UI Changes: You have tested your change using the Google Accessibility Scanner

[xenonnn4w]

Found no string suitable for contentDescription here, the one which i originally found and is being used for this is app_name i.e. "ankidroid".

[xenonnn4w]

Note- Theming these is time-consuming, so it will be worked on later after finalizing this or can be done along this pr accordingly.

[criticalAY]

I find this icon little messy

[xenonnn4w]

Almost similar to what will be shown on screen. I acknowledge the clock is bit messy as i was unable to find this exact emote
https://github.com/ankidroid/Anki-Android/pull/17654/files#diff-2c3d03a8b22190f70a1e2f739c2dc5ac862833e78926234168c23be7cae595a0R142
so i have to make a new one. I'll try to improve it soon. Apart from this, if you have any other suggestions for improvement, please let me know.