bug(android): updates to lexical models offered for all languages listed in the model

[ermshiperete]

The nrc.en.mtnt lexical model lists en, en-US and en-CA as languages. If the user tries to update through the "Install Updates" menu item, three confirmation dialogs are shown, one for each listed language, although only one language is installed.

To reproduce

• install SIL EuroLatin keyboard for English
• download and install nrc.en.mtnt model, v0.3.0 for English
• verify the version for nrc.en.mtnt model
• click the "Install Updates" menu item
• notice that three confirmation dialogs are shown

Expected behavior

Only one confirmation dialog for the model, listing the installed (not available) languages.

Remarks

• This bug will only show after fix(android): show updates for lexical models #16266 is merged which fixes offering updates for lexical models
• See also bug(android): inconsistent UI behavior when cancelling update #16277

Keyman 19.0.258-alpha-local