Timezone aware scheduling of Alarms

[Joshix-1]

Reproduce Problem 1 (before this fix):

• Set device time to Sat. 2024-10-26 10:00 with timezone of Europe/Berlin
• Schedule alarm for Sunday (after 3 am)
• See that the time is wrong

Reproduce Problem 2 (before this fix):

• Create a single alarm that for the current weekday before the current time
• See under the clock that the alarm is scheduled for in six days on the wrong day

What is it?

• Bugfix
• Codebase improvement

Description of the changes in your PR

• Fix scheduling of next alarms

Before/After Screenshots/Screen Record

• Before:
• After:

Fixes the following issue(s)

• Fixes Summer time issues #61

Relies on the following changes

Acknowledgement

• I read the contribution guidelines.

[Joshix-1]

I've been using this now for a while and i didn't encounter any issues.
./gradlew assemble just works and produces a working apk.

./gradlew build complains about the version of a dependency

./gradlew build
> Task :app:lintReportCoreDebug
Wrote HTML report to file:///home/josh/code/FossifyClock/app/build/reports/lint-results-coreDebug.html

> Task :app:lintCoreDebug FAILED
Lint found 21 errors, 0 warnings (140 errors, 1 warning filtered by baseline lint-baseline.xml). First failure:

/home/josh/code/FossifyClock/gradle/libs.versions.toml:28: Error: A newer version of com.android.application than 8.3.1 is available: 8.7.2. (There is also a newer version of 8.3.𝑥 available, if upgrading to 8.7.2 is difficult: 8.3.2) [AndroidGradlePluginVersion]

The full lint text report is located at:
  /home/josh/code/FossifyClock/app/build/intermediates/lint_intermediate_text_report/coreDebug/lintReportCoreDebug/lint-results-coreDebug.txt

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:lintCoreDebug'.
> Lint found errors in the project; aborting build.
  
  Fix the issues identified by lint, or add the issues to the lint baseline via `gradlew updateLintBaseline`.
  For more details, see https://developer.android.com/studio/write/lint#snapshot
  
  Lint found 21 errors, 0 warnings (140 errors, 1 warning filtered by baseline lint-baseline.xml). First failure:
  
  /home/josh/code/FossifyClock/gradle/libs.versions.toml:28: Error: A newer version of com.android.application than 8.3.1 is available: 8.7.2. (There is also a newer version of 8.3.𝑥 available, if upgrading to 8.7.2 is difficult: 8.3.2) [AndroidGradlePluginVersion]
  
  The full lint text report is located at:
    /home/josh/code/FossifyClock/app/build/intermediates/lint_intermediate_text_report/coreDebug/lintReportCoreDebug/lint-results-coreDebug.txt

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
> Get more help at https://help.gradle.org.

BUILD FAILED in 12s
259 actionable tasks: 5 executed, 254 up-to-date

[Joshix-1]

@naveensingh can you - or someone else - please take a look at this? It would be nice if #61 got fixed. That's a really critical bug (I've been hit by it multiple times over the last few years using SMT/Fossify Clock)

[naveensingh]

Clock is to be updated in the coming weeks, I'll check it out then.

[Joshix-1]

I don't know how #73 happened, but this pr should fix it.

[naveensingh]

I tested this a couple times on a couple devices and it works 🎉

I discovered that sometimes the alarms won't trigger when date-time is manually changed in system settings but that is out of scope for this PR.

Thank you!