[lvgl] Bug fixes:

[clydebarrow]

What does this implement/fix?

Types of changes

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Other

Related issue or feature (if applicable):

• fixes [LVGL] Tileview and page scrollbar mode not working issues#6184
• fixes [LVGL] lvgl.update -> disp_bg_color is erroring issues#6190
• https://discord.com/channels/429907082951524364/1276668248422875248

Use this PR for immediate fixes:

external_components:
  - source: github://pr#7341
    refresh: 4h
    components: [lvgl]

Test Environment

• ESP32
• ESP32 IDF
• ESP8266
• RP2040
• BK72xx
• RTL87xx
• host

Example entry for config.yaml:

# Example config.yaml

Checklist:

• The code change is tested and works locally.
• Tests have been added to verify that the new code works (under tests/ folder).

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated in esphome-docs.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 53.94%. Comparing base (4d8b5ed) to head (f1bb93a).
Report is 1215 commits behind head on dev.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev    #7341      +/-   ##
==========================================
+ Coverage   53.70%   53.94%   +0.23%     
==========================================
  Files          50       50              
  Lines        9408     9667     +259     
  Branches     1654     1707      +53     
==========================================
+ Hits         5053     5215     +162     
- Misses       4056     4128      +72     
- Partials      299      324      +25     

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