feat(RingTheory): refactor smulShortComplex

[Thmoas-Guan]

Use LinearMap.lsmul for the f of ModuleCat.smulShortComplex, also providing new APIs for it.

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[github-actions]

PR summary 2da3b35b9d

Import changes exceeding 2%

%	File
+33.54%	Mathlib.RingTheory.Regular.Category

Import changes for modified files

Dependency changes

File	Base Count	Head Count	Change
Mathlib.RingTheory.Regular.Category	1479	1975	+496 (+33.54%)

Import changes for all files

Files	Import difference
Mathlib.RingTheory.Regular.Category	496

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Declarations diff

+ Ext.smulShortComplex_f_postcomp_eq_zero_of_mem_ann
+ Ext.smul_id_postcomp_eq_zero_of_mem_ann
+ LinearMap.exact_lsmul_smul_top_mkQ
+ smulShortComplex_f_eq_smul_id
+ smulShortComplex_f_hom_eq_smul_id
- LinearMap.exact_smul_id_smul_top_mkQ

You can run this locally as follows

## summary with just the declaration names:
./scripts/pr_summary/declarations_diff.sh <optional_commit>

## more verbose report:
./scripts/pr_summary/declarations_diff.sh long <optional_commit>

The doc-module for scripts/pr_summary/declarations_diff.sh contains some details about this script.

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Increase in tech debt: (relative, absolute) = (1.00, 0.00)

Current number	Change	Type
6889	1	backward.isDefEq

Current commit e4b1a57871
Reference commit 2da3b35b9d

You can run this locally as

./scripts/reporting/technical-debt-metrics.sh pr_summary

• The relative value is the weighted sum of the differences with weight given by the inverse of the current value of the statistic.
• The absolute value is the relative value divided by the total sum of the inverses of the current values (i.e. the weighted average of the differences).