Orange progress indicator bar

[sunkup]

Purpose

This is an addition/fix to the M3 rewrite. The progress bar was still green - like the account cards in the accounts overview, and so the pending state very hard to see.

The progress bar was orange before the rewrite to M3, this reverts it to the old state.

Short description

Change the progress indicator bar color to orange everywhere in the app.

• Create reusable ProgressBar composable with secondary theme color as default color, which replaces the usages of LinearProgressIndicator.

Checklist

• [X] The PR has a proper title, description and label.
• [X] I have self-reviewed the PR.
• [x] I have added documentation to complex functions and functions that can be used by other modules.
• [X] I have added reasonable tests or consciously decided to not add tests.