improve breadcrumbs

[connyduck]

The breadcrumbs have several problems,

• the background color and the actived state are wrongly set
• on long paths the texts overlap
• the code is more complicated than necessary

This PR solves all these problems and additionally improves the design by getting rid of the outline of the first item and using an actual icon instead of >.

What is it?

• Bugfix
• Feature
• Codebase improvement

Before/After Screenshots

Fixes the following issue(s)

Fixes FossifyOrg/Gallery#208

[Aga-C]

It also fixes FossifyOrg/General-Discussion#73.

[naveensingh]

I'll check this soon.

From the screenshot, the 'Internal' part doesn't look like a button anymore, it should look like a button because it is the only way (to be revisited) to switch between "Internal", "SD Card", and other available storage volumes.

[KOTRET]

It looks somewhat odd as a button, also the behavior is different to all other elements of the crumb, where tapping the element redirects to the corresponding folder.
In case there is no second drive, it should act as all other parts. Maybe it is possible to find a different indicator for this duo-action element.

[naveensingh]

@connyduck can you restore the outline on the first button until we have a better way to navigate between storage volumes?

[fossifybot]

This pull request has been automatically closed due to inactivity. We requested additional information but have not received a response from the original author. Without the requested details, we cannot proceed. If you have the needed information or updates, please reopen the PR or comment so we can continue the review.

[connyduck]

Stupid bot, I was still going to work on this