Update bookmarksheet emptyview colors to use theme colors

[okuzawats]

Issue

• close Update BookmarkSheet EmptyView Colors to Use Theme Colors #275

Overview (Required)

• I used material theme colors in BookmarkSheet.
  • Because theme colors are not correctly defined, I have to fix the theme colors.
    • This is why the filter ui color is also fixed.
  • Because this page does not implement dark theme properly, I could not confirm to the design for dark mode. Anyway, I thought I fixed some theme colors for dark mode properly.
    • I found another issue for this problem ( Update BookmarkTopArea Colors to Use Theme Colors #277 ) so this problem would be fixed in the near future.
• I also thought that fixing theme colors unnecessarily expand the scope of the PR, so I'd like to discard some changes to theme colors if the reviewer requested :)

Links

Screenshot

Light mode

Before	After

Dark mode

Before	After

[github-actions]

Hi @okuzawats! Codes seem to be unformatted. To resolve this issue, please run ./gradlew spotlessKotlinApply and fix the results of ./gradlew lintDebug.. Thank you for your contribution.

[github-actions]

Test Results

40 tests   40 ✔️  4m 6s ⏱️
  8 suites    0 💤
  8 files      0 ❌

Results for commit 66330ff.

♻️ This comment has been updated with latest results.

[github-actions]

Snapshot diff report

File name	Image
TimetableItemDetailS creenTest.checkScrol lShot_3_compare.png
TimetableItemDetailS creenTest.checkBookm arkToggleShot_compar e.png
TimetableItemDetailS creenTest.checkScrol lShot_4_compare.png
TimetableItemDetailS creenTest.checkScrol lShot_compare.png
TimetableItemDetailS creenTest.checkScrol lShot_2_compare.png
TimetableItemDetailS creenTest.checkLaunc hShot_compare.png
KaigiAppTest.checkNa vigateToBookmarkShot _compare.png
KaigiAppTest.checkNa vigateToContributorS hot_compare.png
KaigiAppTest.checkNa vigateToStampsShot_c ompare.png
KaigiAppTest.checkSt artupShot_compare.pn g
KaigiAppTest.checkNa vigateToFloorMapShot _compare.png
io.github.droidkaigi .confsched2023.sessi ons.component_null_D efaultGroup_Bookmark FiltersPreview_0_nul l_compare.png
KaigiAppTest.checkNa vigateToTimetableIte mDetailShot_compare. png
KaigiAppTest.checkNa vigateToAboutShot_co mpare.png

[takahirom]

Sorry, I updated the theme color please fix the conflict 🙏

[okuzawats]

@takahirom
OK I resolved some conflicts.
Also, I updated the screenshots and the description.
Please check it out🙏

[okuzawats]

I reset some commits before my changes to theme colors, in order to avoid conflict and unnecesarry commits.

[takahirom]

Your input helps us create the right theme! Thanks!