Relands "[gen-l10n] Fixes named and positional parameter issue with NumberFormat when type is specified" (#75346)

* ➕ Added a new template for [NumberFo
rmat] with positional parameter(s)

* 🔨 Renamed [numberFormatTemplate] to [numberFormatNamedTemplate]

* [gen-l10n] Fixed generation error for namedParameters and optionalParameters

* [gen-l10n] Fixed string value generation for optional parameter

* [gen-l10n-test] Added new tests for `decimalPattern`, `percentPattern`, `scientificPattern` and formats with optional parameters.

* 🔨 Removed trailing whitespaces

* 🔨 replaced [_generateStringParameterValue] with [generateString]

* 🔨 Specified variable types in NumberFormat templates.

* ➕ Added a new template for [NumberFo
rmat] with positional parameter(s)

* 🔨 Renamed [numberFormatTemplate] to [numberFormatNamedTemplate]

* [gen-l10n] Fixed generation error for namedParameters and optionalParameters

* [gen-l10n] Fixed string value generation for optional parameter

* [gen-l10n-test] Added new tests for `decimalPattern`, `percentPattern`, `scientificPattern` and formats with optional parameters.

* 🔨 Removed trailing whitespaces

* 🔨 replaced [_generateStringParameterValue] with [generateString]

* 🔨 Specified variable types in NumberFormat templates.

* [gen-l10n] ✅ added test for parameter having special characters in string value.

* Accidental tab added to integration test
Co-authored-by: arish <arishsultan104@gmail.com>