fix(bridge-ui): mobile issues

[jscriptcoder]

Where to test:
https://bridge-ui-a3-git-removemetamaskfrommobiles-taikoxyz.vercel.app/

What's done here:

1. Removed MetaMask connector for mobile/tablet devices. Provider ethereum is simply not injected there. Better to use WalletConnect which will interact with the mobile MetaMask
2. Removed the use of injected provider to get the signer. This was causing most of the issues in mobile.
3. Use fetchSigner() provided by wagmi to get the signer instead.
4. Move the logic to set the signer and chains to the watcher callback.
5. Refactored the way we switch networks. In mobile there are some race condition issues because of the way the UI is updated from the stores.
6. Unit tested switchNetwork new function.
7. Guarding the Add Token to Wallet feature since it uses the injected provider to do so

[codecov]

Codecov Report

Merging #13927 (1c8f268) into main (9d0a502) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main   #13927   +/-   ##
=======================================
  Coverage   51.78%   51.78%           
=======================================
  Files         146      146           
  Lines        3816     3816           
  Branches      335      336    +1     
=======================================
  Hits         1976     1976           
  Misses       1726     1726           
  Partials      114      114           

Flag	Coverage Δ		*Carryforward flag
bridge-ui	94.43% <100.00%> (ø)
eventindexer	77.28% <ø> (ø)		Carriedforward from 63a8a01
protocol	0.00% <ø> (ø)		Carriedforward from 63a8a01
relayer	59.57% <ø> (ø)		Carriedforward from 63a8a01
ui	100.00% <ø> (ø)		Carriedforward from 63a8a01

*This pull request uses carry forward flags. Click here to find out more.

Impacted Files	Coverage Δ
packages/bridge-ui/src/utils/mintERC20.ts	100.00% <ø> (ø)
packages/protocol/contracts/bridge/Bridge.sol	0.00% <ø> (ø)
...ackages/protocol/contracts/bridge/BridgedERC20.sol	0.00% <ø> (ø)
packages/protocol/contracts/bridge/EtherVault.sol	0.00% <ø> (ø)
packages/protocol/contracts/bridge/TokenVault.sol	0.00% <ø> (ø)
...protocol/contracts/bridge/libs/LibBridgeInvoke.sol	0.00% <ø> (ø)
...rotocol/contracts/bridge/libs/LibBridgeProcess.sol	0.00% <ø> (ø)
...rotocol/contracts/bridge/libs/LibBridgeRelease.sol	0.00% <ø> (ø)
.../protocol/contracts/bridge/libs/LibBridgeRetry.sol	0.00% <ø> (ø)
...s/protocol/contracts/bridge/libs/LibBridgeSend.sol	0.00% <ø> (ø)
... and 3 more

... and 1 file with indirect coverage changes

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