refactor: Init getTokenNetworkFilter selector

[gambinish]

Description

We are falling back to an empty object when tokenNetworkFilter is undefined in several areas around the app. This PR aims to consolidate those within a single selector to make is easier to maintain and fall back on.

This only mitigates the issue. Root cause is that the tokenNetworkFilter needs to be added via a migration script in order to properly be present, without having to fallback.

Related issues

Fixes: https://metamask.sentry.io/issues/6125799129/?environment=production&project=273505&query=is%3Aunresolved%20issue.priority%3A%5Bhigh%2C%20medium%5D%20firstRelease%3A12.9.0&referrer=issue-stream&sort=freq&statsPeriod=7d&stream_index=0

Manual testing steps

1. Hardcode tokenNetworkFilter to undefined, should not break app.

Screenshots/Recordings

Before

After

Pre-merge author checklist

• I've followed MetaMask Contributor Docs and MetaMask Extension Coding Standards.
• I've completed the PR template to the best of my ability
• I’ve included tests if applicable
• I’ve documented my code using JSDoc format if applicable
• I’ve applied the right labels on the PR (see labeling guidelines). Not required for external contributors.

Pre-merge reviewer checklist

• I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.

[github-actions]

CLA Signature Action: All authors have signed the CLA. You may need to manually re-run the blocking PR check if it doesn't pass in a few minutes.

[metamaskbot]

Builds ready [ec3c973]

• builds: chrome, firefox
• builds (beta): chrome
• builds (flask): chrome, firefox
• builds (MMI): chrome, firefox
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• build viz: Build System
• mv3: Background Module Init Stats
• mv3: UI Init Stats
• mv3: Module Load Stats
• mv3: Bundle Size Stats
• mv2: E2e Actions Stats
• code coverage: Report
• storybook: Storybook
• typescript migration: Dashboard
• all artifacts
• bundle viz:

  • background: 0, 1, 2, 3, 4, 5, 6
  • common: 0, 1, 10, 11, 12, 2, 3, 4, 5, 6, 7, 8, 9
  • content-script: 0
  • offscreen: 0
  • ui: 0, 1, 10, 11, 12, 13, 2, 3, 4, 5, 6, 7, 8, 9

Page Load Metrics (1929 ± 74 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	243	2199	1858	402	193
		domContentLoaded	1646	2124	1906	154	74
		load	1656	2153	1929	154	74
		domInteractive	25	69	35	12	6
		backgroundConnect	9	73	24	18	8
		firstReactRender	15	97	38	32	15
		getState	86	382	179	95	46
		initialActions	0	0	0	0	0
		loadScripts	1276	1704	1499	134	64
		setupStore	7	84	16	21	10
		uiStartup	1873	3005	2369	333	160

Bundle size diffs [🚨 Warning! Bundle size has increased!]

• background: 0 Bytes (0.00%)
• ui: -114 Bytes (-0.00%)
• common: 91 Bytes (0.00%)

[metamaskbot]

Builds ready [04f0f31]

• builds: chrome, firefox
• builds (beta): chrome
• builds (flask): chrome, firefox
• builds (MMI): chrome, firefox
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• build viz: Build System
• mv3: Background Module Init Stats
• mv3: UI Init Stats
• mv3: Module Load Stats
• mv3: Bundle Size Stats
• mv2: E2e Actions Stats
• code coverage: Report
• storybook: Storybook
• typescript migration: Dashboard
• all artifacts
• bundle viz:

  • background: 0, 1, 2, 3, 4, 5, 6
  • common: 0, 1, 10, 11, 12, 2, 3, 4, 5, 6, 7, 8, 9
  • content-script: 0
  • offscreen: 0
  • ui: 0, 1, 10, 11, 12, 13, 2, 3, 4, 5, 6, 7, 8, 9

Page Load Metrics (2103 ± 140 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	237	3005	1940	605	291
		domContentLoaded	1756	2921	2067	297	143
		load	1801	2927	2103	292	140
		domInteractive	27	98	49	24	12
		backgroundConnect	9	92	37	27	13
		firstReactRender	16	95	26	17	8
		getState	99	325	152	55	26
		initialActions	0	0	0	0	0
		loadScripts	1370	2409	1632	267	128
		setupStore	6	80	16	21	10
		uiStartup	2041	3407	2468	366	176

Bundle size diffs [🚨 Warning! Bundle size has increased!]

• background: 0 Bytes (0.00%)
• ui: -114 Bytes (-0.00%)
• common: 67 Bytes (0.00%)

[darkwing]

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