Resolve #2232375 "Make language switcher nocache"

Closes #2232375

added 1 commit

• cec25cec - include stylesheet size changes

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added 25 commits

• cec25cec...7df65709 - 19 commits from branch project:11.x
• 72b0edd3 - 2232375: Make language switcher block cacheable
• c33a303e - Support CacheOptionalInterface in BlockViewBuilder
• 71437f6c - make block cacheable
• 0f71f577 - phpcs
• 6ca0816e - revert laanguage switching test
• 9397a396 - placeholder and nocache

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added 21 commits

• 9397a396...7dacab44 - 15 commits from branch project:11.x
• 4a99d0f5 - 2232375: Make language switcher block cacheable
• a91a4232 - Support CacheOptionalInterface in BlockViewBuilder
• 04cdeaba - make block cacheable
• 2f42cfbf - phpcs
• 84fa6fd2 - revert laanguage switching test
• bc8f6884 - placeholder and nocache

Compare with previous version