Update Material Design links to Material 3

[guidezpl]

1. Links. These can be typically be identified when material.io links end in .html. Almost every page should be updated to use m3.material.io links.

e.g. https://docs.flutter.dev/development/ui/layout#card links to https://material.io/design/components/cards.html but can now link to https://m3.material.io/components/cards

2. Assets. New assets can be provided

[rexthecoder]

@guidezpl If this issue is available for contribution, I would like to work on it. Please assign it to me if possible

cc @danagbemava-nc

[rexthecoder]

@guidezpl I wanted to make a PR but it seems the project is not accepting PR for now, so I will wait till 14th as instructed

[rexthecoder]

@guidezpl I have made the pr, I will list all the links I have updated so far, and you can go through in case I need to change any

[parlough]

Looks like the links were updated in #8706, thank you!

However, we still need to go through and audit images and other assets throughout the site to verify they were built with Material 3. It will likely be a larger undertaking that can happen across multiple pull requests.

[rexthecoder]

@guidezpl I will update my descriptions so that it does not confuse others. Meanwhile, I would like to work on this but it needs a little bit of draft to know which part we are supposed to work on

[vj-codes]

I would like to work on it further @guidezpl

[atsansone]

This relates to #8834.

[rexthecoder]

@atsansone Where are we taking it from, I noticed you assigned it to someone earlier.

[atsansone]

@rexthecoder : You made the fix. Just giving you the credit.

[atsansone]

Closing this issue as complete and opening a new one to update assets.