[android] Various UX fixups / Improvements (#2870)

- Swap import / export icons on InstallablesFragment and GamePropertiesFragment
- Redesign AddonFragment
- Fix up colors for multiplayer bottom sheets
- Fix up padding in multiplayer lobby browser

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/2870
Reviewed-by: Lizzie <lizzie@eden-emu.dev>
Reviewed-by: crueter <crueter@eden-emu.dev>
Reviewed-by: MaranBr <maranbr@eden-emu.dev>
Co-authored-by: kleidis <kleidis1@protonmail.com>
Co-committed-by: kleidis <kleidis1@protonmail.com>

src/android/app/src/main/res/values/strings.xml

@@ -200,6 +200,7 @@
     <string name="multiplayer_chat">Chat</string>
     <string name="multiplayer_more_options">More Options</string>
     <string name="chat">Chat</string>
+    <string name="clear">Clear</string>
     <string name="type_message">Type message…</string>
     <string name="send_message">Send Message</string>
     <string name="multiplayer_moderation">Moderation</string>
@@ -686,7 +687,7 @@
     <string name="copy_details">Copy details</string>
     <string name="add_ons">Add-ons</string>
     <string name="add_ons_description">Toggle mods, updates and DLC</string>
-    <string name="playtime">Playtime:</string>
+    <string name="playtime">Playtime: </string>
     <string name="reset_playtime">Clear Playtime</string>
     <string name="reset_playtime_description">Reset the current game\'s playtime back to 0 seconds</string>
     <string name="reset_playtime_warning_description">This will clear the current game\'s playtime data. Are you sure?</string>