refactor: migrate ContextCompat.startActivity to Context.startActivity

Replace all ContextCompat.startActivity(context, intent, null) calls
with direct context.startActivity(intent) and remove unused
ContextCompat imports.

https://claude.ai/code/session_01HNLozZ4Vn3dgHrmyNGPgVq

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/components/CashuRedeem.kt

@@ -51,7 +51,6 @@ import androidx.compose.ui.text.style.TextDirection
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
-import androidx.core.content.ContextCompat.startActivity
 import androidx.core.net.toUri
 import com.vitorpamplona.amethyst.R
 import com.vitorpamplona.amethyst.commons.hashtags.Cashu
@@ -217,7 +216,7 @@ fun CashuPreviewNew(
                             val intent = Intent(Intent.ACTION_VIEW, "cashu://${token.token}".toUri())
                             intent.flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK
 
-                            startActivity(context, intent, null)
+                            context.startActivity(intent)
                         } catch (e: Exception) {
                             if (e is CancellationException) throw e
                             toast(stringRes(context, R.string.cashu), stringRes(context, R.string.cashu_no_wallet_found))

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/note/elements/DropDownMenu.kt

@@ -49,7 +49,6 @@ import androidx.compose.runtime.setValue
 import androidx.compose.ui.platform.LocalClipboardManager
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.text.AnnotatedString
-import androidx.core.content.ContextCompat
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import com.vitorpamplona.amethyst.R
 import com.vitorpamplona.amethyst.model.AddressableNote
@@ -223,7 +222,7 @@ fun NoteDropDownMenu(
                         putExtra(Intent.EXTRA_TITLE, stringRes(actContext, R.string.quick_action_share_browser_link))
                     }
                 val shareIntent = Intent.createChooser(sendIntent, stringRes(actContext, R.string.quick_action_share))
-                ContextCompat.startActivity(actContext, shareIntent, null)
+                actContext.startActivity(shareIntent)
                 onDismiss()
             }
         }

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/note/types/CommunityHeader.kt

@@ -57,7 +57,6 @@ import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
-import androidx.core.content.ContextCompat
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import com.vitorpamplona.amethyst.R
 import com.vitorpamplona.amethyst.commons.model.EmptyTagList
@@ -519,7 +518,7 @@ fun ShareCommunityButton(
 
             val shareIntent =
                 Intent.createChooser(sendIntent, stringRes(actContext, R.string.quick_action_share))
-            ContextCompat.startActivity(actContext, shareIntent, null)
+            actContext.startActivity(shareIntent)
         },
     ) {
         Icon(

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/bookmarkgroups/display/BookmarkGroupItemOptions.kt

@@ -44,7 +44,6 @@ import androidx.compose.runtime.setValue
 import androidx.compose.ui.platform.LocalClipboardManager
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.text.AnnotatedString
-import androidx.core.content.ContextCompat
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import com.vitorpamplona.amethyst.R
 import com.vitorpamplona.amethyst.model.Note
@@ -237,7 +236,7 @@ fun BookmarkGroupItemOptionsMenu(
 
                 val shareIntent =
                     Intent.createChooser(sendIntent, stringRes(actContext, R.string.quick_action_share))
-                ContextCompat.startActivity(actContext, shareIntent, null)
+                actContext.startActivity(shareIntent)
                 onDismiss()
             }
         }

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/lists/display/lists/PeopleListScreen.kt

@@ -70,7 +70,6 @@ import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.dp
-import androidx.core.content.ContextCompat
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import androidx.lifecycle.viewmodel.compose.viewModel
 import com.vitorpamplona.amethyst.R
@@ -448,7 +447,7 @@ private fun ListActionsMenuButton(
 
                     val shareIntent =
                         Intent.createChooser(sendIntent, stringRes(context, R.string.quick_action_share))
-                    ContextCompat.startActivity(context, shareIntent, null)
+                    context.startActivity(shareIntent)
                     isActionListOpen.value = false
                 }
                 M3ActionRow(icon = Icons.Outlined.Edit, text = stringRes(R.string.follow_set_edit_list_metadata)) {

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/lists/display/packs/FollowPackScreen.kt

@@ -63,7 +63,6 @@ import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.dp
-import androidx.core.content.ContextCompat
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import androidx.lifecycle.viewmodel.compose.viewModel
 import com.vitorpamplona.amethyst.R
@@ -303,7 +302,7 @@ private fun ListActionsMenuButton(
 
                     val shareIntent =
                         Intent.createChooser(sendIntent, stringRes(context, R.string.quick_action_share))
-                    ContextCompat.startActivity(context, shareIntent, null)
+                    context.startActivity(shareIntent)
                     isActionListOpen.value = false
                 }
                 M3ActionRow(icon = Icons.Outlined.Edit, text = stringRes(R.string.follow_pack_edit_list_metadata)) {